Relay control method, device and auto
A control device and control method technology, applied in electric vehicles, current collectors, electric traction, etc., can solve problems such as power consumption of devices, achieve the effects of reducing power loss, increasing cruising range, and saving power
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no. 1 example
[0028] Such as figure 1 As shown, it is a flow chart of the control method of the relay in the first embodiment of the present invention, including:
[0029] Step 101, when the engine control unit EMS driving relay of the extended-range electric vehicle is in the power-on state and the engine is not running, the EMS sends a request message requesting power-off of the control relay to the vehicle control unit VCU.
[0030] In this step, specifically, the EMS of the extended-range electric vehicle will drive the relay to be in a power-on state, thereby controlling the engine as auxiliary power generation. However, when the engine is shut down, that is, when it is not running, the relay in the power-on state will continue to be in the power-on state for a certain period of time, which greatly increases the energy consumption of the extended-range electric vehicle. At this time, specifically, when the EMS drive relay of the extended-range electric vehicle is in the power-on state...
no. 2 example
[0044] Such as figure 2 As shown, it is a structural block diagram of the control device of the relay in the second embodiment of the present invention, including:
[0045] The first sending module 201 is used to send a request message requesting power-off of the control relay to the vehicle control unit VCU when the engine control unit EMS drive relay of the extended-range electric vehicle is in the power-on state and the engine is in the non-running state;
[0046] The receiving module 202 is configured to receive a response message that the VCU sends according to the request message to allow the EMS to control the power-off of the relay;
[0047] The first control module 203 is configured to control the relay to be powered off according to the response message.
[0048] Optionally, the control device further includes a second sending module, configured to send a feedback message that a relay is in a power-off state to the VCU.
[0049] Optionally, the first sending modul...
no. 3 example
[0054] The present invention also provides an automobile, which includes the relay control device provided in the foregoing embodiments.
[0055] The automobile can realize the various processes realized by the control device of the relay in the foregoing embodiments, and in order to avoid repetition, details are not repeated here.
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