Vehicle control system and device, relay control method and vehicle

• Main Authors: GENG PENG, WANG BINBIN, LU LILAI, ZHANG PENGJUN
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2021
• Subjects: ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The invention discloses a vehicle control system and device, a relay control method and a vehicle, wherein the vehicle control system and device are applied to control over a quiescent current suppression relay in a new energy vehicle, and the system comprises a fault detection module and a controller; the controller is used for controlling the quiescent current suppression relay to delay starting after the new energy vehicle is started; the fault detection module is used for detecting whether the quiescent current suppression relay has a fault or not; and the controller is used for controlling the quiescent current suppression relay to start immediately when the quiescent current suppression relay is normal. After the vehicle controller is powered on, the quiescent current suppression relay is controlled to be started in a delayed mode, fault diagnosis on the quiescent current suppression relay is achieved in the delayed starting period of the quiescent current suppression relay, if a fault exists, the quies