CN215662964U - Control device for observing power-off of high-voltage system - Google Patents
Control device for observing power-off of high-voltage system Download PDFInfo
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- CN215662964U CN215662964U CN202121949637.7U CN202121949637U CN215662964U CN 215662964 U CN215662964 U CN 215662964U CN 202121949637 U CN202121949637 U CN 202121949637U CN 215662964 U CN215662964 U CN 215662964U
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Abstract
The utility model discloses a control device for observing power-off of a high-voltage system, which comprises a vehicle control unit, a fuse, an ON gear delay relay and a gear shifting panel, wherein the ON gear delay relay is connected to a manual power switch, the gear shifting panel is connected to the ON gear delay relay through the fuse, and the ON gear delay relay is connected to the vehicle control unit. According to the utility model, whether the power supply of the whole vehicle is completed or not is judged by observing the state of the power supply indicator lamp of the gear shifting panel, and the time for disconnecting the main power switch is determined, so that the components of the whole vehicle control system are protected.
Description
Technical Field
The utility model relates to a control device for observing the power-off of a high-voltage system, belonging to the technical field of control for observing the power-off of the high-voltage system of a pure electric vehicle.
Background
With the rapid development of scientific technology, the living standard of people is continuously improved, and the pure electric vehicle becomes a daily travel tool advocated by the nation. Meanwhile, people have higher technical requirements and operating requirements on vehicles.
The control system component is a key component on the pure electric vehicle, and the performance of the control system component directly influences the performance of the vehicle. However, when the voltage of the whole vehicle is reduced, if the operation is not proper, the control system components are easily damaged, so that the vehicle cannot be driven, and at this time, the high-low voltage power supply of the control system components needs to be effectively monitored, so that the influence on the safety of the whole vehicle is controlled to be minimum.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: the utility model provides a control device who observes high-voltage system and descend electricity to solve the technical problem that exists among the above-mentioned prior art.
The technical scheme adopted by the utility model is as follows: the utility model provides an observe controlling means that high-voltage system went off electricity, includes vehicle control unit, fuse, ON shelves time delay relay and the panel of shifting, and ON shelves time delay relay is connected to manual switch, and the panel of shifting is connected to ON shelves time delay relay through the fuse, and ON shelves time delay relay is connected to vehicle control unit.
The utility model has the beneficial effects that: compared with the prior art, the device has the advantages that the state of the power supply indicator lamp of the gear shifting panel is observed, whether the whole vehicle is powered off or not is judged, and the time for disconnecting the main power switch is determined, so that the components of the control system of the whole vehicle are protected.
Drawings
Fig. 1 is a schematic diagram of the circuit structure of the present invention.
Detailed Description
The utility model is further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1, a control device for observing power-off of a high-voltage system comprises a vehicle control unit, a fuse, an ON-gear delay relay and a gear shifting panel, wherein the ON-gear delay relay is connected to a manual power switch, the gear shifting panel is connected to the ON-gear delay relay through the fuse of 10A, the ON-gear delay relay is connected to the vehicle control unit, and the ON-gear delay relay is connected to a battery management system, an all-in-one power supply and a motor controller through the fuse of 10A.
In the figure, a C1 pin of an ON gear delay relay is connected with a vehicle ground, a B4 pin of the ON gear delay relay is connected with a control pin of a vehicle controller, and the electrification flow of a gear shifting panel is as follows: when the whole vehicle is powered ON, the whole vehicle controller is normally powered ON, and after receiving a key ON gear signal, the whole vehicle controller outputs a high level to the B4 foot to control the ON gear delay relay, so that power is supplied to the gear shifting panel. The power-off process of the gear shifting panel comprises the following steps: after the ON gear signal of the vehicle control key disappears, the high-voltage part starts to go to a high-voltage power-down process, when all the high-voltage parts (the battery management system, the all-in-one power supply and the motor controller) finish the high-voltage power-down process, the vehicle controller does not provide a high-level signal for the pin B4 of the device, so that the completion of the high-voltage power-down process of the high-voltage parts is proved, and the manual power switch can be disconnected. Therefore, the problem that the control system component is damaged due to the fact that the high voltage of the high-voltage component is not powered off and the low voltage is powered off is solved.
The utility model can also solve the problem that the high-voltage component is damaged because the high voltage is not powered off and the low voltage is powered off, and the specific solving process is as follows: the high-voltage and low-voltage electrifying process of the high-voltage component (the battery management system, the all-in-one power supply and the motor controller) comprises the following steps: when the whole vehicle is powered ON, the whole vehicle controller is normally powered ON, and after receiving a key ON gear signal, the whole vehicle controller outputs a high level to control an ON gear delay relay B4 pin, so that low voltage is supplied to high-voltage components such as a battery management system, an all-in-one controller and a motor controller, and then the whole vehicle controller judges whether high voltage is met or not according to information fed back by each high-voltage component, if not, high voltage is not met, and if yes, high voltage is carried out; the high-voltage component high-low voltage power-down process comprises the following steps: after the signal of the ON gear of the vehicle control key disappears, the vehicle controller controls each high-voltage component to start a high-voltage and low-voltage power-down process through the CAN message, and when all the high-voltage components finish the high-voltage and low-voltage power-down, the vehicle controller controls each high-voltage component to finish the low-voltage and low-voltage power-down through the foot of the device B4, so that the problem that the high-voltage components are damaged because the high-voltage components are not powered down and the low-voltage power is powered down is solved.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (1)
1. A control device for observing power failure of a high-voltage system is characterized in that: the automatic transmission system comprises a vehicle control unit, a fuse, an ON gear delay relay and a gear shifting panel, wherein the ON gear delay relay is connected to a manual power switch, the gear shifting panel is connected to the ON gear delay relay through the fuse, and the ON gear delay relay is connected to the vehicle control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121949637.7U CN215662964U (en) | 2021-08-19 | 2021-08-19 | Control device for observing power-off of high-voltage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121949637.7U CN215662964U (en) | 2021-08-19 | 2021-08-19 | Control device for observing power-off of high-voltage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215662964U true CN215662964U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121949637.7U Active CN215662964U (en) | 2021-08-19 | 2021-08-19 | Control device for observing power-off of high-voltage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215662964U (en) |
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2021
- 2021-08-19 CN CN202121949637.7U patent/CN215662964U/en active Active
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