A control method for soft and hard start adjustment of electric vehicle drive system
A technology of electric vehicle controller and drive system, which is applied to electric vehicles, electric components, control and drive, etc., can solve the problems of inaccuracy, limited adjustment range, and inconvenient operation of user input speed control signals.
Active Publication Date: 2019-10-25
台州赛盈电机科技有限公司
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Problems solved by technology
However, the adjustment range of this method is limited and imprecise, and it is inconvenient for the user to input the speed control signal.
Method used
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Embodiment Construction
[0042] The embodiment of the invention discloses a control method for soft and hard start adjustment of the electric vehicle drive system. The electric vehicle drive system includes an electric motor and an electric vehicle controller for controlling the operation of the electric motor; The stator assembly is connected with the electric wheel hub as a whole, and the outer rotor assembly is magnetically coupled with the stator assembly and coaxially output. The front end cover and the rear end cover at both ends of the motor shaft can be relatively rotatable through the installation of bearings. The front end cover and the The rear end cover is respectively fixedly connected to both sides of the outer rotor assembly, wherein the control method of the electric vehicle controller includes the following steps:
[0043] A10), the user inputs the starting demand to the electric vehicle controller through operation;
[0044] A20), determine the starting current according to the startin...
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The invention discloses a control method for the soft start and hard start adjustment of an electric vehicle drive system. The electric vehicle drive system comprises a motor and an electric vehicle controller for controlling the operation of the motor. The motor is a direct current brushless motor. The control method of the electric vehicle controller includes the following steps: A10), a user inputting a start request to the electric vehicle controller through operation; A20), determining the start current according to the start request output in the step A10); A30), controlling and outputting PWM acceleration values according to the start current value determined in the step A20); and A40), achieving the soft start and hard start adjustment of the electric vehicle drive system. The usercan control the adjustment of the soft start and hard start performance of the electric vehicle through own external operation according to own needs, thus the feeling adjustment when starting the electric vehicle is accurately realized, the user comfort is improved, and the user operation is simple and convenient.
Description
technical field [0001] The invention relates to the field of electric vehicle drive, in particular to a control method for soft and hard start adjustment of the electric vehicle drive system. Background technique [0002] Electric vehicles are developing very rapidly because of their convenience and energy efficiency. With the mass promotion of electric vehicles, the market's requirements for the comfort of electric vehicles are getting higher and higher, which leads to more and more precise matching requirements between the controller and the motor. [0003] The soft and hard start of an electric vehicle simply refers to the feeling when the user starts using the electric vehicle. For the electric vehicle controller, the soft and hard start is mainly controlled by the starting current CuRRent, which affects the vehicle from a static state. Breakaway times and acceleration feel to full throttle. However, the existing controllers leave the factory with a fixed start-up curr...
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Patent Timeline
Login to View More IPC IPC(8): H02K1/16H02K5/10H02K29/08H02P6/20B60L15/20
CPCB60L15/20B60L2240/429H02K1/16H02K5/10H02K29/08H02K2213/03H02P6/20Y02T10/64Y02T10/72
Inventor 郭明生徐祥韩广卫赵勇伟王柱军
Owner 台州赛盈电机科技有限公司