CN104786961B - Power supply control device and method for vehicle differential controller - Google Patents
- ️Tue Apr 10 2018
CN104786961B - Power supply control device and method for vehicle differential controller - Google Patents
Power supply control device and method for vehicle differential controller Download PDFInfo
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- CN104786961B CN104786961B CN201410027562.5A CN201410027562A CN104786961B CN 104786961 B CN104786961 B CN 104786961B CN 201410027562 A CN201410027562 A CN 201410027562A CN 104786961 B CN104786961 B CN 104786961B Authority
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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Abstract
本发明为一种车辆差速器控制器的电源控制装置及方法，应用于控制车辆内的差速器控制器，其中，本发明包含电源稳压电路、触发电路、驱动电路及继电器，该电源稳压电路将输入电压转换为工作电压而供应给该触发电路使用，该触发电路可在接收到手刹车信号时产生触发信号，使该驱动电路根据该触发信号控制该继电器转为导通，以提供输出电压至该差速器控制器；因此，本发明得以在车辆的电源关闭并启动手刹车时，自动提供足够的供电时间给差速器控制器，使其有足够时间将车辆的差速器切换成锁定状态。
The present invention is a power supply control device and method for a vehicle differential controller, which is applied to control the differential controller in the vehicle, wherein the present invention comprises a power supply voltage stabilizing circuit, a trigger circuit, a drive circuit and a relay, wherein the power supply voltage stabilizing circuit converts the input voltage into a working voltage and supplies it to the trigger circuit for use, and the trigger circuit can generate a trigger signal when receiving a hand brake signal, so that the drive circuit controls the relay to turn on according to the trigger signal to provide an output voltage to the differential controller; therefore, when the power of the vehicle is turned off and the hand brake is activated, the present invention can automatically provide sufficient power supply time to the differential controller, so that it has enough time to switch the vehicle's differential to a locked state.
Description
技术领域technical field
本发明涉及一种车辆差速控制器的电源控制装置及方法，尤指一种可根据手刹车信号维持差速控制器电源的控制装置及方法。The invention relates to a power supply control device and method for a vehicle differential speed controller, in particular to a control device and method for maintaining the power supply of the differential speed controller according to a hand brake signal.
背景技术Background technique
请参考图7所示，针对配备有差速器的车辆(如沙滩车)，于车辆的前轮及后轮分别提供前轮差速器201及后轮差速器202，并分别利用前轮差速器控制器104及后轮差速器控制器105对该前轮差速器201及后轮差速器202进行控制，启用差速功能或是锁定无差速功能。Please refer to Fig. 7, for a vehicle equipped with a differential (such as an ATV), a front wheel differential 201 and a rear wheel differential 202 are respectively provided on the front wheels and rear wheels of the vehicle, and the front wheels are used to The differential controller 104 and the rear differential controller 105 control the front differential 201 and the rear differential 202 to activate the differential function or lock the non-differential function.
当启用差速功能时，即未锁定状态，代表左、右两边的车轮能够以不同转速转动。反之当锁定差速功能时，代表左、右两边的车轮维持相同转速，可以同步转动。When the differential function is activated, that is, it is unlocked, which means that the left and right wheels can rotate at different speeds. Conversely, when the differential function is locked, it means that the left and right wheels maintain the same speed and can rotate synchronously.
当驾驶人停车且并将手刹车拉杆103拉起时，可将车辆的传动轴锁定住使其不会转动；但在前轮差速器201及后轮差速器202的控制部分，因为该前轮差速器控制器104与后轮差速器控制器105通过电源开关102向车辆电源101取得工作电力，若驾驶人关闭该电源开关102，该前轮差速器控制器104与后轮差速器控制器105因为得不到电源供应，也会立即停止控制作业并维持在电源关闭前的最后工作状态，故前轮差速器201及后轮差速器202仍可能是维持在未锁定的状态。When the driver stops and pulls up the hand brake lever 103, the transmission shaft of the vehicle can be locked so that it cannot rotate; The front wheel differential controller 104 and the rear wheel differential controller 105 obtain operating power from the vehicle power supply 101 through the power switch 102. If the driver turns off the power switch 102, the front wheel differential controller 104 and the rear wheel differential controller 104 are connected to the rear wheel differential controller. The differential gear controller 105 also will stop the control work immediately and maintain the last working state before the power is turned off because the power supply cannot be obtained, so the front wheel differential 201 and the rear wheel differential 202 may still be maintained at the uncontrolled state. locked state.
由于该前轮差速器201及后轮差速器202维持在未锁定的状态，左右两边的轮胎可分别转动，在某些特殊的地形下，例如斜坡，虽然手刹车已经拉起并锁定传动轴，车轮仍有转动的顾虑而导致车辆能发生移动，恐引起危险意外。Because the front wheel differential 201 and the rear wheel differential 202 remain in an unlocked state, the tires on the left and right sides can rotate respectively. Under some special terrains, such as slopes, although the hand brake has been pulled up and the transmission is locked Axles and wheels still have concerns about rotation, which may cause the vehicle to move, which may cause dangerous accidents.
发明内容Contents of the invention
鉴于现有差速器控制器随着电源开关的关闭而立即停止作业，导致差速器仍可能维持在未锁定的操作顾虑，本发明的主要目的是提供一种差速器控制器的电源控制装置及方法，可确保当车辆熄火停止时该差速器在锁定状态。In view of the concern that the existing differential controller will stop working immediately when the power switch is turned off, causing the differential to remain unlocked, the main purpose of the present invention is to provide a power control system for the differential controller The device and method can ensure that the differential gear is in a locked state when the vehicle is turned off and stopped.
为达成前述目的，本发明的差速器控制器的电源控制装置包含有：In order to achieve the aforementioned purpose, the power supply control device of the differential controller of the present invention includes:
电源输入接脚，供连接至车辆的车辆电源以接收输入电压；A power input pin for connecting to the vehicle power supply of the vehicle to receive an input voltage;
电源输出接脚，供连接至车辆的至少一差速器控制器；a power output pin for connecting to at least one differential controller of the vehicle;
电源稳压电路，连接该电源输入接脚以接收该输入电压，并将该输入电压转换为工作电压；A power supply voltage stabilizing circuit, connected to the power supply input pin to receive the input voltage, and convert the input voltage into an operating voltage;
触发电路，连接该电源稳压电路以接收该工作电压，并接收来自车辆的手刹车拉杆被拉起时所产生的手刹车信号，于接收该手刹车信号时输出具有预设时间的触发信号；The trigger circuit is connected to the power supply voltage stabilization circuit to receive the working voltage, and receives the hand brake signal generated when the hand brake lever of the vehicle is pulled up, and outputs a trigger signal with a preset time when receiving the hand brake signal;
驱动电路，连接该触发电路以接收该触发信号，并接收来自车辆的电源开关信号，该驱动电路于电源开关信号或触发信号其中任一存在时输出驱动信号；A drive circuit, connected to the trigger circuit to receive the trigger signal and a power switch signal from the vehicle, the drive circuit outputs a drive signal when either the power switch signal or the trigger signal exists;
继电器，连接于该电源输入端与电源输出端之间，该继电器连接该驱动电路以接收该驱动信号，受该驱动信号控制成为导通状态，使电源输出端可输出输出电压至该差速器控制器。A relay is connected between the power input terminal and the power output terminal, the relay is connected to the drive circuit to receive the drive signal, and is controlled by the drive signal to be in a conduction state, so that the power output terminal can output an output voltage to the differential controller.
本发明的差速器控制器的电源控制方法，包含：The power supply control method of the differential controller of the present invention includes:
检测车辆的电源开关是否关闭，若已关闭则中断提供至差速器控制器的输出电压；Detect whether the power switch of the vehicle is turned off, and interrupt the output voltage supplied to the differential controller if it is turned off;
检测手刹车是否启动，在电源开关已关闭后，判断车辆的手刹车拉杆是否有被拉起而产生手刹车信号；Detect whether the hand brake is activated, after the power switch is turned off, judge whether the hand brake lever of the vehicle is pulled up to generate a hand brake signal;
产生触发信号，在检测到该手刹车信号时产生触发信号，该触发信号维持一段预设时间；A trigger signal is generated, and the trigger signal is generated when the hand brake signal is detected, and the trigger signal is maintained for a preset period of time;
恢复该输出电压，在该预设时间内恢复供应给该差速器控制器的该输出电压，使该差速器控制器在该预设时间内恢复运作，将车辆的差速器转为锁定状态。recovering the output voltage, restoring the output voltage supplied to the differential controller within the preset time, causing the differential controller to resume operation within the preset time, and turning the differential of the vehicle to lock state.
利用前述电源控制装置及方法，当驾驶人关闭车辆电源并拉起手刹车时，手刹车信号将启动该触发电路产生触发信号，使驱动电路根据该触发信号短暂导通该继电器，随着该继电器导通，该电源控制装置可送出输出电压给差速器控制器，使其有足够时间将车辆的差速器切换成锁定状态，防止车辆左右两侧的车轮产生非同步转动。Using the aforementioned power supply control device and method, when the driver turns off the power of the vehicle and pulls up the hand brake, the hand brake signal will start the trigger circuit to generate a trigger signal, so that the drive circuit will temporarily conduct the relay according to the trigger signal, and the relay will When it is turned on, the power control device can send an output voltage to the differential controller, so that it has enough time to switch the differential of the vehicle into a locked state, preventing the wheels on the left and right sides of the vehicle from rotating asynchronously.
附图说明Description of drawings
图1：本发明的差速器控制器电源控制装置应用于车辆的控制系统方块图。Fig. 1: A block diagram of a control system in which the differential controller power supply control device of the present invention is applied to a vehicle.
图2：本发明的差速器控制器电源控制装置的电路方块图。Fig. 2: The circuit block diagram of the differential controller power supply control device of the present invention.
图3：本发明中的触发电路其详细电路图。Fig. 3: Its detailed circuit diagram of trigger circuit among the present invention.
图4：本发明中的驱动电路其详细电路图。Fig. 4: Its detailed circuit diagram of driving circuit among the present invention.
图5：本发明的波形图。Figure 5: Waveform diagram of the present invention.
图6：本发明的方法流程图。Figure 6: Flowchart of the method of the present invention.
图7：现有车辆差速器的控制系统方块图。Figure 7: Block diagram of the control system of an existing vehicle differential.
具体实施方式Detailed ways
请参考图1所示，本发明提供一种差速器控制器电源控制装置1，连接车辆的车辆电源101、电源开关102、手刹车拉杆103与至少一差速器控制器，本实施例中以前轮差速器控制器104及后轮差速器控制器105为例说明。Please refer to FIG. 1, the present invention provides a differential controller power supply control device 1, which is connected to a vehicle power supply 101, a power switch 102, a hand brake lever 103 and at least one differential controller. In this embodiment The front wheel differential controller 104 and the rear wheel differential controller 105 will be described as examples.
该差速器控制器电源控制装置1的内部电路如图2所示，包含有电源稳压电路10、触发电路20、驱动电路30及继电器40，且其接脚包含有电源输入接脚51、电源输出接脚52，其中，该电源输入接脚51连接至车辆的车辆电源101，该电源输出接脚52连接至该前轮差速器控制器104及该后轮差速器控制器105。该车辆电源101通常是电瓶，可提供直流的输入电压Vin。The internal circuit of the differential controller power supply control device 1 is shown in Figure 2, including a power supply voltage stabilizing circuit 10, a trigger circuit 20, a drive circuit 30 and a relay 40, and its pins include a power input pin 51, The power output pin 52 , wherein the power input pin 51 is connected to the vehicle power supply 101 of the vehicle, and the power output pin 52 is connected to the front wheel differential controller 104 and the rear wheel differential controller 105 . The vehicle power supply 101 is usually a storage battery, which can provide a DC input voltage Vin.
该电源稳压电路10通过该电源输入接脚51连接到车辆的车辆电源101以接收输入电压Vin，并将该输入电压Vin转换为可常时提供的工作电压。The power supply stabilizing circuit 10 is connected to the vehicle power supply 101 of the vehicle through the power input pin 51 to receive an input voltage Vin, and convert the input voltage Vin into a working voltage that can be provided all the time.
该触发电路20连接该电源稳压电路10以接收该直流工作电压，并且连接该手刹车拉杆103以取得手刹车信号S1，当手刹车被拉起时，可以产生触发信号S2并由其输出端送出该触发信号S2给驱动电路30。请参考图3所示，该触发电路20在本优选实施例中以单稳态触发电路组成，包含计时调整电路22，用以设定预设时间。当接收该手刹车信号S1时，单稳态触发电路会改变其输出信号的准位状态并维持该预设时间，例如从原本的低准位信号改变为高准位信号，并于预设时间内维持该高准位信号，当预设时间结束即自动恢复为低准位信号。该单稳态触发电路可由555IC构成，其输入接脚接收该手刹车信号，另于两输入接脚连接由电阻R1与电容C1串联构成的RC电路，该RC电路作为该计时调整电路22，调整该电阻R1或电容C1的数值大小可改变该预设时间的长短。The trigger circuit 20 is connected to the power supply stabilizing circuit 10 to receive the DC operating voltage, and is connected to the hand brake lever 103 to obtain the hand brake signal S1. The trigger signal S2 is sent to the driving circuit 30 . Please refer to FIG. 3 , the trigger circuit 20 is composed of a monostable trigger circuit in this preferred embodiment, and includes a timing adjustment circuit 22 for setting a preset time. When receiving the hand brake signal S1, the monostable trigger circuit will change the level state of its output signal and maintain the preset time, such as changing from the original low level signal to a high level signal, and at the preset time The high-level signal is maintained for a period of time, and it will automatically return to the low-level signal when the preset time is over. The monostable trigger circuit can be composed of 555IC, its input pin receives the hand brake signal, and an RC circuit composed of a resistor R1 and a capacitor C1 in series is connected to the two input pins, and the RC circuit is used as the timing adjustment circuit 22 to adjust The value of the resistor R1 or the capacitor C1 can change the length of the preset time.
请参考图4所示，该驱动电路30有两输入端，分别接收来自该触发电路20的触发信号S2与电源开关102的电源开关信号S3。该驱动电路30的输出端连接该继电器40，可输出驱动信号以决定该继电器40为导通或非导通状态，其中，当没有电源开关信号S3且无触发信号S2时，该驱动电路30控制继电器40为非导通状态，当存在有电源开关信号S3或触发信号S2其中之一时，该驱动电路30控制继电器40为导通状态。Please refer to FIG. 4 , the driving circuit 30 has two input terminals for respectively receiving the trigger signal S2 from the trigger circuit 20 and the power switch signal S3 from the power switch 102 . The output terminal of the drive circuit 30 is connected to the relay 40, and can output a drive signal to determine whether the relay 40 is in a conduction or non-conduction state. Wherein, when there is no power switch signal S3 and no trigger signal S2, the drive circuit 30 controls The relay 40 is in a non-conductive state. When there is one of the power switch signal S3 or the trigger signal S2 , the driving circuit 30 controls the relay 40 to be in a conductive state.
该继电器40本身则是串接在电源输入接脚51与电源输出接脚52之间，当继电器40依据该驱动信号转为导通时，由车辆电源101提供的输入电压Vin可通过该继电器40，由该电源输出接脚52向外送出输出电压Vout。相反的，当继电器40未导通时，该电源输出接脚52则不会输出任何电压。The relay 40 itself is connected in series between the power input pin 51 and the power output pin 52. When the relay 40 is turned on according to the driving signal, the input voltage Vin provided by the vehicle power supply 101 can pass through the relay 40. , the output voltage Vout is sent out from the power supply output pin 52 . On the contrary, when the relay 40 is not turned on, the power output pin 52 will not output any voltage.
本发明的电路动作请配合参考图1与图5，当车辆在行驶时，电源开关102导通时，可接收到高准位的该电源开关信号S3，使继电器40维持在导通状态，在电源输出接脚52上可持续送出该输出电压Vout，使该前轮差速器控制器104与该后轮差速器控制器105正常工作。Please refer to Figure 1 and Figure 5 for the circuit action of the present invention. When the vehicle is running and the power switch 102 is turned on, the power switch signal S3 of a high level can be received, so that the relay 40 is maintained in the conduction state. The output voltage Vout can be continuously sent from the power output pin 52 to make the front differential controller 104 and the rear differential controller 105 work normally.
当车辆停止时，驾驶人将电源开关102关闭(如t1时点)，该电源开关信号S3由高准位降为低准位，驱动电路30未输出该驱动信号给继电器40，继电器40转为非导通状态，因此无输出电压Vout。When the vehicle stops, the driver turns off the power switch 102 (as at time t1), the power switch signal S3 is reduced from a high level to a low level, and the drive circuit 30 does not output the drive signal to the relay 40, and the relay 40 turns to Non-conducting state, so there is no output voltage Vout.
当驾驶人再进一步拉起手刹车时，该手刹车信号S1由高准位转为低准位(如t2时点)，该触发电路30立即改变其触发信号s2的准位，由低准位成为高准位并维持该预设时间t2～t3，在此时间之内驱动电路30可输出驱动信号给继电器40，令继电器40再次于该预设时间t2～t3之内保持导通状态，故在该段间内再次提供输出电压Vout。该前轮差速器控制器104与后轮差速器控制器105在该段时间t2～t3内可获得足够的电源将前轮差速器201、后轮差速器202控制进入锁定状态。When the driver further pulls up the hand brake, the hand brake signal S1 changes from a high level to a low level (such as at time t2), and the trigger circuit 30 immediately changes the level of its trigger signal s2 from a low level to a low level. become high level and maintain the preset time t2-t3, within this time the drive circuit 30 can output a drive signal to the relay 40, so that the relay 40 remains on again within the preset time t2-t3, so During this period, the output voltage Vout is supplied again. The front-wheel differential controller 104 and the rear-wheel differential controller 105 can obtain enough power supply to control the front-wheel differential 201 and the rear-wheel differential 202 into a locked state during the period t2-t3.
本发明的差速器控制器电源控制装置1执行电源控制方法，可参考图6，包含有以下步骤：The differential controller power supply control device 1 of the present invention executes a power supply control method, which can refer to FIG. 6 and includes the following steps:
检测电源开关是否关闭(S601)，若关闭，则中断提供至前轮差速器控制器104与后轮差速器控制器105的输出电压；Detect whether the power switch is closed (S601), if closed, then interrupt the output voltage provided to the front wheel differential controller 104 and the rear wheel differential controller 105;
检测手刹车是否启动(S602)，在电源开关已关闭后，判断车辆的手刹车拉杆是否被拉起而产生手刹车信号；Detect whether the hand brake is activated (S602), after the power switch is turned off, determine whether the hand brake lever of the vehicle is pulled up to generate a hand brake signal;
产生触发信号(S603)，在检测到该手刹车信号时产生触发信号，该触发信号维持一段预设时间；Generate a trigger signal (S603), generate a trigger signal when the hand brake signal is detected, and maintain the trigger signal for a preset period of time;
恢复输出电压(S604)，在该预设时间之内恢复提供至该前轮差速器控制器104与后轮差速器控制器105的输出电压，使该前轮差速器控制器104与后轮差速器控制器105在该预设时间内恢复供电运作。restore the output voltage (S604), restore the output voltage provided to the front wheel differential controller 104 and the rear wheel differential controller 105 within the preset time, so that the front wheel differential controller 104 and the rear wheel differential controller 105 The rear differential controller 105 resumes power supply operation within the preset time.
综上所述，本发明的差速器控制器电源控制装置1可以在驾驶人关闭车辆电源并拉起手刹车时，维持短暂的供电时间给前轮差速器控制器104、后轮差速器控制器105，使其有足够时间将前轮差速器201、后轮差速器202切换为锁定状态，防止车轮产生非同步转动。In summary, the differential controller power supply control device 1 of the present invention can maintain a short power supply time for the front wheel differential controller 104, the rear wheel differential The device controller 105 makes it have enough time to switch the front wheel differential 201 and the rear wheel differential 202 to the locked state, preventing the wheels from producing non-synchronous rotation.
Claims (7)
1. a kind of power control of differential for vehicles controller, it is characterised in that include：
Power input pin, for being connected to the vehicle power supply of vehicle to receive input voltage；
Power supply output connecting pin, at least differential controls device for being connected to vehicle；
Power supply stabilization circuit, the power input pin is connected to receive the input voltage, and the input voltage is changed For operating voltage；
Triggers circuit, the power supply stabilization circuit is connected to receive the operating voltage, and receive the hand brake from vehicle and draw Caused hand brake signal when bar is pulled up, triggering letter of the output with preset time when the hand brake signal is received Number；
Drive circuit, the triggers circuit is connected to receive the trigger signal, and receive the power switch signal from vehicle, Drive circuit output drive signal in the presence of power switch signal or trigger signal any of which；
Relay, be connected between the power input and power output end, the relay connect the drive circuit with The drive signal is received, is turned into conducting state by drive signal control, makes the exportable output voltage of power output end extremely The differential controls device.
2. the power control of differential for vehicles controller as claimed in claim 1, it is characterised in that the triggers circuit Comprising timing adjustment circuit, to set the preset time.
3. the power control of differential for vehicles controller as claimed in claim 2, it is characterised in that the triggers circuit For single-shot trigger circuit, the trigger signal of output high levle within the preset time.
4. the power control of differential for vehicles controller as claimed in claim 3, it is characterised in that the timing adjustment Circuit is by resistance and electric capacity RC circuits in series.
5. the power control of the differential for vehicles controller as any one of Claims 1-4, it is characterised in that institute Drive circuit is stated in non source switch signal and during without the trigger signal, control relay turns into nonconducting state.
6. the power control of differential for vehicles controller as claimed in claim 3, it is characterised in that the power supply output Pin supplies to be connected to the front wheel differential gear controller and trailing wheel differential controls device of vehicle.
7. a kind of power control method of differential for vehicles controller, it is characterised in that include：
Whether the power switch of detection vehicle closes, and interrupts and is provided to the output voltage of differential controls device if being turned off；
Whether the detection hand brake starts, after power switch is turned off, the handbrake lever for judging vehicle whether be pulled up and Produce hand brake signal；
Trigger signal is produced, trigger signal is produced when detecting the hand brake signal, the trigger signal maintains one section in advance If the time；
Recover the output voltage, recover to be supplied to the output electricity of the differential controls device in the preset time Pressure, makes the differential controls device be resumed operation in the preset time, the differential mechanism of vehicle is switched into lock-out state.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6820712B2 (en) * | 2000-12-07 | 2004-11-23 | Yamaha Hatsudoki Kabushiki Kaisha | Differential locking control system |
| TW201031567A (en) * | 2009-02-19 | 2010-09-01 | Kwang Yang Motor Co | Power-interrupting device for vehicle parking |
| CN103260928A (en) * | 2010-12-16 | 2013-08-21 | 北极星工业有限公司 | Multimode traction system |
| US8678976B1 (en) * | 2013-02-18 | 2014-03-25 | Honda Motor Co., Ltd. | Vehicles including differential lock controller and methods |
| US8790217B1 (en) * | 2013-03-01 | 2014-07-29 | Honda Motor Co., Ltd. | Vehicles including differential lock controller and methods |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI558584B (en) * | 2014-01-02 | 2016-11-21 | Kwang Yang Motor Co | Vehicle power control device and method for vehicle differential controller |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6820712B2 (en) * | 2000-12-07 | 2004-11-23 | Yamaha Hatsudoki Kabushiki Kaisha | Differential locking control system |
| TW201031567A (en) * | 2009-02-19 | 2010-09-01 | Kwang Yang Motor Co | Power-interrupting device for vehicle parking |
| CN103260928A (en) * | 2010-12-16 | 2013-08-21 | 北极星工业有限公司 | Multimode traction system |
| US8678976B1 (en) * | 2013-02-18 | 2014-03-25 | Honda Motor Co., Ltd. | Vehicles including differential lock controller and methods |
| US8790217B1 (en) * | 2013-03-01 | 2014-07-29 | Honda Motor Co., Ltd. | Vehicles including differential lock controller and methods |
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