Extended-range electric vehicle, and vehicle control unit, power generation control method and power generation control system of extended-range electric vehicle
A vehicle controller and power generation control technology, applied in the field of electric vehicle control, can solve problems such as low economy and stability, large fluctuations in power generation, and slow engine response
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Embodiment 1
[0044] It should be noted that the embodiment of the present application is applied to a situation where the power battery of the electric vehicle is low and the range-extending mode needs to be activated.
[0045] The flow chart of a power generation control method for an extended-range electric vehicle provided in Embodiment 1 of the present application is as follows: figure 1 shown, including:
[0046] Step S101: When it is detected that the electric quantity of the power battery does not meet the preset condition, obtain the generated power of the whole vehicle, and decompose the generated power of the whole vehicle into target speed and target torque;
[0047]In order to improve the power generation efficiency, fuel consumption and emissions of electric vehicles, electric vehicles will be calibrated with several fixed power values when they leave the factory, instead of continuously changing. Specifically, the generated power of the whole vehicle can be calculated acco...
Embodiment 2
[0071] A schematic structural diagram of a vehicle controller for an extended-range electric vehicle provided in Embodiment 2 of the present application is as follows: image 3 shown, including:
[0072] A detection module 301, an acquisition module 302 and a control module 303; wherein,
[0073] The detection module 301 is used to detect the electric quantity of the power battery, and judge whether the electric quantity satisfies the preset condition;
[0074] The obtaining module 302 is used to obtain the generated power of the whole vehicle when the electric quantity of the power battery does not meet the preset condition, decompose the generated power of the whole vehicle into target speed and target torque, and obtain the speed of the generator in real time;
[0075] The control module 303 is used to control the generator to start the speed mode according to the target speed, and at the same time control the engine to output a constant torque; when the speed of the gener...
Embodiment 3
[0085] A schematic structural diagram of a power generation control system for an extended-range electric vehicle provided in Embodiment 3 of the present application is as follows Figure 5 shown, including:
[0086] Vehicle controller 501, motor control system 502 and EFI control system 503;
[0087] The vehicle controller 501 is used to send a speed start command to control the generator to start the speed mode according to the target speed when the electric power of the power battery does not meet the preset condition, and at the same time send the first torque to control the engine to output a constant torque output command; when the rotational speed of the generator reaches the target rotational speed, send a second torque output command to control the engine to output the target torque; when the electric power of the power battery meets the preset condition or there is an external power supply to charge the power battery , sending an instruction for controlling the stop...
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