Battery electric vehicle control system and control method

• Main Authors: DING JIKANG, LI JUNHUI
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2019
• 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 battery electric vehicle control system and control method. The control method comprises the steps that an input signal processing module conducts acquisition, diagnosis andprocessing on an input signal of a vehicle control unit; a power-on and power-off control and vehicle mode management module judges the working mode of a vehicle according to a key signal collected bythe input signal processing module and controls the power-on and power-off process under different modes; a driver torque requirement analysis module implements driver accelerator pedal and brake pedal analysis and meanwhile implements speed-limiting control computing; a vehicle energy management module conducts limiting on charge-discharge power of a battery according to the current charge stateand meanwhile feeds back electric energy consumed by accessories to a driving motor; a system capacity computing module computes the current maximum allowable driving energy and current maximum electric braking energy of the s