A ramp parking control method and system for an electric vehicle
A technology of electric vehicles and control methods, applied in electric vehicles, control drives, control devices, etc., can solve problems such as motor burnout, and achieve the effect of fast switching speed, avoiding motor stall and burning out, and smooth switching.
Active Publication Date: 2020-10-02
ZHENGZHOU YUTONG BUS CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a ramp parking control method and system for an electric vehicle, which is used to solve the problem that the motor will burn out due to the motor being blocked for a long time when the vehicle is parked
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[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] The structural diagram of the dual-motor power system of the present invention is as follows figure 1 As shown, in the mechanical connection, the first motor (motor one) 1 is connected to the second motor (motor two) 3 through the torsional shock absorber 2, the output shaft of the second motor 3 is connected to the gearbox 4, and the gearbox 4 passes through The output shaft 5 is connected to the main reducer 6, and the final reducer 6 is connected to the wheel 7 through the axle; in terms of control, the vehicle controller 10 and the motor controller 8 interact with each other, and the motor controller 8 controls the first motor 1 and the second motor respectively. The motor 3 is connected to the high-voltage line, the battery 9 i...
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The invention relates to a ramp parking control method and system of an electric automobile. The control method comprises the following steps: in a parking process, enabling two motors to be both in adriving parking state and a standby state alternately, wherein at least one motor is in the driving parking state at any moment. According to the invention, while a vehicle needs to be parked in a ramp, the two motors are both in the driving parking state and the standby state alternately; since at least one motor is in the driving parking state at any moment, the motor in the driving parking state is capable of realizing ramp parking of the vehicle; and in addition, since any one motor is alternately switched between the driving parking state and the standby state, not only is the switchingspeed faster, but also a phenomenon that the motor is stalled and burned out because the motor is in the driving parking state for a long time is effectively avoided.
Description
technical field [0001] The invention relates to a ramp parking control method and system for an electric vehicle, belonging to the technical field of electric vehicle control. Background technique [0002] With the country's strong support for new energy vehicles, the technology of three electric vehicles has been rapidly improved, and electric vehicles have also been rapidly promoted and popularized. Compared with traditional vehicles, the disadvantage of electric vehicles is that the cost of manufacturing and use increases, but the controllability of electric vehicles is improved, and traditional devices can be replaced by control means, so that the cost of electric vehicles can be reduced. [0003] For the slope starting function, traditional vehicles need to use complex devices to realize this function, but in electric vehicles, the slope starting assistance can be realized by controlling the motor, which greatly exerts the electronic control advantages of electric vehic...
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IPC IPC(8): B60L15/20
CPCB60L15/2018B60L15/2081B60L2240/421B60L2240/423Y02T10/72
Inventor 李涛苏常军沙超
Owner ZHENGZHOU YUTONG BUS CO LTD