[0042] The present invention will be further described below in conjunction with the drawings.
[0043] The electric vehicle power-off method of the present invention includes the following steps:
[0044] (1) When the power supply of the whole vehicle is in Ready gear, the steps to power off the whole vehicle are as follows:
[0045] Such as figure 2 As shown, (1) Real-time acquisition of car door status information, when the body controller 3 detects that the main driver or assistant driver door status changes from door open to door closed, and all doors are closed, the body controller 3 drives the low-frequency antenna 4 Detect the smart key 5. If the smart key is not detected in the car, and the driver and co-driver unmanned signal from the seat sensor 2 are received, and the current vehicle speed is less than the preset speed (for example: 3km/h), the body The controller 3 issues a power-off request command. After receiving this signal, the VCU 8 disconnects the ON high-voltage power supply, and then the body controller 3 disconnects the ON gear relay control, and the vehicle power supply enters the OFF gear.
[0046] If the body controller 3 detects that the state of the main driving door changes from door open to door closed, and detects that the smart key is in the car, it will maintain the power of the vehicle in the Ready gear and display it on the first display device 7 (for example: instrument) Prompt that the smart key 5 is in the car.
[0047] If the body controller 3 detects that the state of the main driving door changes from door open to door closed, the body controller 3 detects a signal from the main driver or the co-driver, the body controller 3 does not perform any operation, and the vehicle power gear remains at Ready block.
[0048] If the body controller 3 detects that the state of the main driving door changes from door open to door closed, and the body controller 3 detects that the vehicle speed is greater than or equal to the preset vehicle speed (for example: 3km/h), the vehicle power supply is maintained in the Ready gear.
[0049] (2) If the body controller 3 receives the power-off request signal from the second display device (for example: DVD) 6, if the current vehicle speed is lower than the preset speed (for example: 3km/h), control the power of the whole vehicle to OFF Gear, otherwise maintain the vehicle power supply in Ready gear.
[0050] (2) When the power supply of the whole vehicle is in ON high voltage, the steps for powering off the whole vehicle are as follows:
[0051] Such as image 3 As shown, (1) Real-time acquisition of car door status information, when the body controller 3 detects that the main driver or assistant driver door status changes from door open to door closed, and all doors are closed, the body controller 3 drives the low-frequency antenna 4 Detect the smart key 5. If the smart key is not detected in the car, and the seat sensor’s signal from the main driver and the passenger is unmanned, the body controller 3 sends a power-off request command, and the VCU 8 receives this After the power request command, the ON high-voltage power is disconnected, and then the body controller 3 disconnects the ON gear relay control, and the power supply of the whole vehicle is turned to OFF gear.
[0052] If the body controller 3 detects that the state of the main driving door changes from door open to door closed, and detects that the legal key is in the car, it will maintain the power supply of the entire vehicle in the ON high-voltage gear, and prompt the smart key on the first display device Inside.
[0053] If the body controller 3 detects that the state of the main driving door changes from door open to door closed, the body controller 3 detects a signal from the main driver or the co-driver, the body controller 3 does not perform any operation, and the vehicle power gear remains ON High-pressure gear.
[0054] (2) When the body controller 3 receives the power-off request signal from the second display device 6, it controls the power supply of the whole vehicle to go to OFF.
[0055] (3) When the power supply of the whole vehicle is in ON low voltage, the steps for powering off the whole vehicle are as follows:
[0056] Such as Figure 4 As shown, (1) Real-time acquisition of car door status information, when the body controller 3 detects that the main driver or assistant driver's door status changes from door open to door closed, and all doors are closed, the body controller 3 drives the low-frequency antenna 4Detect the smart key 5. If the smart key 5 is not detected in the car, and the driver and the passenger are unmanned signal from the seat sensor 2, the body controller 3 controls the ON gear relay to turn off. The car power is down to OFF gear.
[0057] When the body controller 3 detects that the state of the main driving door changes from door open to door closed, and detects that the smart key 5 is in the car, the power gear of the whole vehicle is maintained at the ON low-voltage gear, and a prompt is displayed on the first display device 7 The smart key 5 is in the car.
[0058] If the body controller 3 detects that the state of the main driving door changes from door open to door closed, and the body controller 3 detects a signal from the main driver or co-driver, the body controller 3 does not perform any operation, and the vehicle power supply gear remains ON Low gear.
[0059] (2) When the body controller 3 receives the power-off request signal from the second display device 6, it controls the power supply of the whole vehicle to go to OFF.
[0060] Such as figure 1 As shown, an electric vehicle power-off system includes a door control system 1, a seat sensor 2, a body controller 3, a low-frequency antenna 4, a smart key 5, a second display device 6, a first display device 7 and a VCU (electric Vehicle controller of automobile) 8.
[0061] The door control system 1 is used to detect the door switch signal and provide the door status information to the body controller 3; the door control system 1 is connected to the body controller 3.
[0062] The seat sensor 2 is used to detect the presence or absence of a seat and send it to the body controller 3, and the seat sensor 2 is connected to the body controller 3.
[0063] The low-frequency antenna 4 is used to detect the smart key 5 and is driven by the body controller 3, and the low-frequency antenna 4 is connected to the body controller 3.
[0064] The smart key 5 is used to receive low-frequency detection signals and send a key signal to the body controller 3, the signal including the key ID and instructions;
[0065] The first display device 7 (such as an instrument) is used to receive and display the state of the door from the body controller 3. The first display device 7 is connected to the VCU 8.
[0066] The VCU8 is used to receive vehicle speed information and send it to the body controller 3, and to receive and execute the power-off request command issued by the body controller 3, and feed back the power gear information of the entire vehicle; the VCU8 is connected to the body controller 3.
[0067] The second display device (for example: DVD) 6 has a virtual power-off request button, and sends a power-off request signal when the virtual power-off request button is triggered; the second display device 6 is connected to the vehicle body controller 3.
[0068] The body controller 3 is used to detect the door status information provided by the door control system 1, the seat sensor 2 human and unmanned signals, drive the low-frequency antenna 4 to detect the smart key 5, receive the ID and instructions sent by the smart key 3 and authenticate the key position information, Pull on the ON gear relay and send a power-off request command to VCU8. The body controller is programmed to execute the steps of the electric vehicle power-off method as described in this embodiment.
[0069] In this embodiment, a computer-readable storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement The steps of the electric vehicle power-off method described in the example.
[0070] In this embodiment, a car includes the electric car power-off system as described in this embodiment.
[0071] In this embodiment, the power supply gear status is as follows:
[0072] OFF gear: the vehicle is powered off;
[0073] ON low voltage gear: work with electrical appliances normally;
[0074] ON high voltage gear: high voltage relay pulls in;
[0075] Ready gear: The vehicle enters a driving state.
