Commercial vehicle manual power-off switch control system and commercial vehicle

Abstract

The utility model discloses a commercial vehicle manual power-off switch control system and a commercial vehicle, and the commercial vehicle manual power-off switch control system comprises a closed loop formed by sequentially connecting a low-voltage storage battery pack, a manual switch, a vehicle body control module and a DCDC converter in series, one end, connected with the low-voltage storage battery pack, of the manual switch leads out a wire to be connected to the vehicle body control module, and the other end of the manual switch is connected with the vehicle body ground, so that the vehicle body control module acquires the on-off state of the manual switch and the working state information of the vehicle body control module, and sends a request signal for stopping working of the DCDC converter to the DCDC converter through a bus; the DC-DC converter is made to stop supplying power. According to the utility model, a simple circuit lap joint is designed, so that the manual switch and the DCDC converter stop working synchronously. Meanwhile, when the vehicle body control module detects that the key is not in the vehicle and the vehicle door is closed, the vehicle can be automatically locked, and the safety of the vehicle is guaranteed; and the scheme is simple and easy to realize.

Description

TECHNICAL FIELD

[0001] The utility model relates to commercial vehicle hand switch technical field, specifically speaking, it is a commercial vehicle manual power-off switch control system and commercial vehicle. BACKGROUND

[0002] At present, commercial vehicles are generally equipped with manual switches to cut off the power supply of low-voltage storage batteries, the purpose of which is to save the static consumption of loads on the vehicle. In new energy commercial vehicles, when the high voltage of the vehicle is working, if the user gets off the vehicle and forgets to lock the vehicle, directly disconnects the manual switch, and cuts off the power supply of the low-voltage storage battery, it will be mistaken that the vehicle has also been powered off and left. However, in fact, because the high voltage is working, the DCDC converter is also continuously supplying power to the low voltage, and disconnecting the manual switch only disconnects the low-voltage storage battery, and the DCDC converter will continue to work, which will cause safety hazards of the vehicle. SUMMARY

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a commercial vehicle manual power-off switch control system and commercial vehicle, a simple control circuit is designed, so that when the manual switch is disconnected, the DCDC converter will also stop working, so that the power supply of the vehicle is disconnected and the load of the vehicle will stop working.

[0004] The utility model solves the above problems through the following technical scheme:

[0005] A control system of a commercial vehicle manual power-off switch, comprising: a closed loop formed by a low-voltage storage battery pack, a manual switch, a vehicle body control module and a DCDC converter connected in series, wherein the negative electrode of the low-voltage storage battery pack is connected to the manual switch, the manual switch is connected to one end of the low-voltage storage battery pack and leads out a wire connected to the vehicle body control module, the other end is connected to the vehicle body ground, so as to collect the opening and closing state of the manual switch and the working state information of the vehicle body control module through the vehicle body control module, and send the request signal of stopping the DCDC converter to the DCDC converter through the bus, so as to make the DCDC converter stop power supply.

[0006] As a further improvement of the utility model, the vehicle body control module is also connected with a low-frequency antenna, a vehicle door detector and a door lock motor.

[0007] As a further improvement of the utility model, the manual switch is double-bladed, one way is connected to the negative electrode of the low-voltage storage battery pack and the vehicle body ground, and the other way is connected to the vehicle body control module and the vehicle body ground.

[0008] As a further improvement of the utility model, the low-voltage storage battery pack is composed of not less than one storage battery, and not less than one storage battery is connected in series through a wire.

[0009] As a further improvement of the utility model, the voltage of the battery is 12V, so as to form a 24V low-voltage battery pack.

[0010] As a further improvement of the utility model, the vehicle body control module is further connected with a buzzer, so as to remind the driver to close the door.

[0011] Meanwhile, the utility model further solves the above problems through the following technical scheme:

[0012] A commercial vehicle comprises a control system of a manual power-off switch of the commercial vehicle as described above.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] The utility model designs a simple circuit joint, so that when the manual switch is disconnected, the DCDC converter will also stop working synchronously, so that the power supply of the vehicle is disconnected and the load of the vehicle will stop working. Meanwhile, when the key is not in the vehicle and the door is closed, the vehicle body control module will automatically lock the vehicle, ensuring the safety of the vehicle. The scheme is simple and easy to implement. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a connection schematic diagram of the control system of the manual power-off switch of the commercial vehicle of the utility model. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0017] EMBODIMENT

[0018] Referring to the drawings Figure 1 A control system of a manual power-off switch of a commercial vehicle comprises a closed loop formed by a low-voltage battery pack, a manual switch, a vehicle body control module and a DCDC converter in sequence, wherein the negative pole of the low-voltage battery pack is connected with the manual switch, the manual switch is connected with one end of the low-voltage battery pack and leads out a wire connected to the vehicle body control module, the other end is connected with the vehicle body ground, so as to collect the opening and closing state of the manual switch and the working state information of the vehicle body control module through the vehicle body control module, and send the request signal of stopping the DCDC converter from working to the DCDC converter through the bus, so that the DCDC converter stops power supply.

[0019] Specifically, when the vehicle body control module collects that the manual switch is disconnected and the DCDC converter is still working, a request signal for stopping the DCDC converter from working is sent to the bus, and the DCDC converter stops power supply after receiving the request signal, so that all loads on the vehicle are disconnected from power supply, thereby ensuring the safety of the vehicle.

[0020] Meanwhile, the vehicle body control module is also connected with a low-frequency antenna, a door detector and a door lock motor in the commercial vehicle, so as to drive the low-frequency antenna in the vehicle to search for the key, and if the key is not in the vehicle and it is detected that the door is closed, the vehicle will be automatically locked by the door lock motor, thereby avoiding the safety hazard caused by forgetting to lock the vehicle.

[0021] In a specific embodiment, the manual switch is double-blade-shaped, one path of which is connected with the negative pole of the low-voltage battery pack and the vehicle body ground, and the other path of which is connected with the vehicle body control module and the vehicle body ground.

[0022] The DCDC converter is a direct-current-to-direct-current converter, which is a power electronic device and is mainly used for converting the direct current of the automobile battery into the direct current required by other loads, thereby supplying power to the low-voltage electrical loads and the battery of the whole vehicle.

[0023] In the embodiment, the low-voltage battery pack is composed of two batteries, and of course, it can also be composed of other numbers of batteries, and the two batteries are connected in series through wires, and preferably, the voltage of the battery is 12V, so as to constitute a 24V low-voltage battery pack.

[0024] As a preferred, the vehicle body control module is also connected with a buzzer, so as to remind the driver of various conditions, such as the door being not closed, and driving the buzzer to alarm.

[0025] The control system of the commercial vehicle manual power-off switch of the utility model, the vehicle body control module collects the loop of the manual switch, and identifies the action of opening and closing of the manual switch. When the vehicle body control module collects that the manual switch is disconnected, a request signal for stopping the DCDC converter from working is sent to the DCDC converter, and the DCDC converter stops power supply after receiving the request signal, so that power supply to other low-voltage electrical appliances can be stopped in time, thereby improving the safety of the whole vehicle.

[0026] In addition, in an optional embodiment, a commercial vehicle is also provided with a control system of a commercial vehicle manual power-off switch, so that the DCDC converter and the manual switch can be synchronized after abnormal power-off of the vehicle through simple circuit connection, thereby ensuring the safety of the vehicle. Moreover, the scheme is simple and easy to implement.

[0027] Although the present application has been described with reference to the explanatory embodiments thereof, the above-described embodiments are merely the preferred embodiments of the present application, and the embodiments of the present application are not limited to the above-described embodiments, and it should be understood that many other modifications and embodiments can be designed by those skilled in the art, and these modifications and embodiments will fall within the scope and spirit of the principles disclosed in the present application.

Claims

1. A control system for a manual disconnect switch of a commercial vehicle, characterized in that, The application relates to a control system of a manual power-off switch of a commercial vehicle. The closed loop is formed by a low-voltage battery, a manual switch, a body control module and a DCDC converter in sequence, wherein the negative pole of the low-voltage battery is connected with the manual switch, one end of the low-voltage battery is connected with the body control module through a wire, and the other end is connected with the body ground, so that the opening and closing state of the manual switch and the working state information of the body control module are collected through the body control module, and a request signal for stopping the working of the DCDC converter is sent to the DCDC converter through a bus, so that the DCDC converter stops power supply.

2. The control system of a manual disconnect switch for a commercial vehicle of claim 1, wherein, The body control module is further connected with a low-frequency antenna, a door detector and a door lock motor.

3. The control system of a manual disconnect switch for a commercial vehicle of claim 1, wherein, The manual switch is double-blade-shaped, one path of which is connected with the negative pole of the low-voltage battery and the body ground, and the other path is connected with the body control module and the body ground.

4. The control system of a manual disconnect switch for a commercial vehicle of claim 1, wherein, The low-voltage battery is composed of not less than one battery, and not less than one battery is connected in series through a wire.

5. The control system of a manual disconnect switch for a commercial vehicle of claim 4, wherein, The voltage of the battery is 12V, so as to form a 24V low-voltage battery.

6. The control system of a manual disconnect switch for a commercial vehicle according to any one of claims 1-5, characterized in that, The body control module is further connected with a buzzer, so as to remind the driver to close the door.

7. A commercial vehicle characterized in that The application relates to a control system of a manual power-off switch of a commercial vehicle.

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