Vehicle power over-limit control method and device and vehicle

• Main Authors: ZHOU WEI, GUO SHUXING
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2020
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

The invention discloses a vehicle power over-limit control method and device and a vehicle. The method comprises the steps of: entering a power over-limit control stage after a vehicle is judged to have a power over-limit fault; in a first control stage, reducing the first limiting power according to a preset reduction algorithm to obtain the limiting power of the vehicle at a next moment, and entering a second control stage until the first actual power is not greater than the initial limiting power; in the second control stage, outputting the limiting power of the vehicle at the next moment according to the first limiting power, and when the difference value obtained by subtracting the first actual power from the initial limiting power is larger than a difference value threshold, enteringa third control stage; and in the third control stage, increasing the first limiting power according to a preset increasing algorithm to obtain the limiting power of the vehicle at a next moment, andending the power over-lim