Vehicle control method, device and system and vehicle

• Main Authors: CHEN LINGPING, NIU SHENGFU, DAI XIHUAI, WANG ZHEN, XIONG HUAFENG
• Format: Patent
• Language: Chinese; English
• Published: 20.11.2020
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a vehicle control method, device and system and a vehicle, and the method comprises the steps: receiving a power request initiated by a VCU in a driving process, and the powerrequest comprises a requested power value; judging whether the power value is less than or equal to a preset power value; if the power value is smaller than or equal to the preset power value, judgingwhether a preset diagnosis starting condition is met or not; and if the preset diagnosis starting condition is met, starting the target OBD diagnosis. The embodiment of the invention provides a vehicle control scheme. During travel, when it is judged that the power value of the VCU request is smaller than or equal to the preset power value and meets the preset diagnosis starting condition at thesame time, the target OBD diagnosis is carried out without actively controlling the vehicle to create the idling working condition to carry out the target OBD diagnosis, so that the fuel consumption is reduced, and the NVH prob