The invention discloses a constant speed cruising method for an electric vehicle and a device. The method comprises steps: whether the electric vehicle enters a constant speed cruising mode is judged, and if the electric vehicle is determined to enter the constant speed cruising mode, a cruising rotation speed instruction is calculated; and according to the state of a motor of the electric vehicle, whether the cruising rotation speed instruction needs to be corrected is judged, if the cruising rotation speed instruction needs to be corrected, a cruising rotation speed instruction after correction is acquired, the cruising rotation speed instruction after correction is outputted to a motor controller, and constant speed cruising of the electric vehicle is realized. According to the constant speed cruising method and the device of the embodiment, according to the state of the motor of the electric vehicle, the cruising rotation speed instruction after correction is outputted to the motor controller, constant speed cruising of the electric vehicle is realized, overload working of the motor can be effectively prevented, the motor enters an over-current protection state, reliability of constant speed cruising control and safety of the vehicle are improved, and the complexity degree and the cost of constant speed cruising control are reduced.
Constant speed cruising method for electric vehicle and device
2015-08-12
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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