The invention provides a control method of an electric automobile. The control method comprises the following steps: obtaining the current speed and the gear state of the automobile when an accelerator pedal and a brake pedal of the automobile are not depressed; when the current speed is smaller than a preset speed, and the gear state is a forward or reverse gear state, obtaining a proportion coefficient and an integral coefficient according to the characteristics of the automobile, and obtaining a speed difference between a target speed and the current speed; obtaining a proportion correcting coefficient according to the gear state, and obtaining an integral correcting coefficient according to the gear state and the speed difference; obtaining a final proportion coefficient according to the proportion coefficient and the proportion correcting coefficient, and obtaining a final integral coefficient according to the integral coefficient and the integral correcting coefficient; and performing PI control on the driving torque according to the speed difference, the final integral coefficient and the final integral coefficient so as to enable the current speed of the automobile to approach to the target speed. Through the adoption of the control method disclosed by the embodiment of the invention, the driving comfort of a driver can be improved, and the automobile can be prevented from sliding down a slope to a certain degree. The invention further provides the electric automobile.
Control method of electric automobile, and electric automobile
2015-08-19
Patent
Electronic Resource
English
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
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