Electric car PTC logic control system

• Main Authors: SUN XIUYING, YAO WEIDAN, SHAO GENGBO, YUAN ZHICHAO, ZHANG HUA, ZHANG JIAKUN, ZHAO DONGFENG, SHI LIN, YANG CHUNHUA
• Format: Patent
• Language: Chinese; English
• Published: 15.06.2018
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The invention discloses an electric car PTC logic control system. An electric car air conditioner PTC controller communicates with a VCU and a motor compressor controller CLM through a CAN network, the PTC controller transmits a work demand to the VCU, the VCU determines whether a demand signal transmitted by the PTC controller is effective according to the combination the car in-out temperature and cold-warm ventilation door position signals through a self-tuning PID optimization algorithm, and when the demand signal transmitted by the PTC controller is judged to be effective, the VCU transmits a shielded signal to the motor compressor controller CLM to force a motor compressor to be turned off; and a PTC heater is interlocked with the motor compressor through the network communication tofurther ensure that the PTC heater and the motor compressor cannot work simultaneously, and a solution with low cost and high reliability is provided to eliminate potential safety hazards of simultaneous turning-on of refrig