Patent ID: 11865934
Assignee: BYD COMPANY LIMITED
Field: Transport (Mechanical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 19:
20. An electric vehicle, comprising an integrated control system for the electric vehicle, wherein the electric vehicle comprises a power battery, a low-voltage battery, and an alternating current (AC) charging and discharging port, and the integrated controller system comprises:
an integrated controller for the electric vehicle, wherein the integrated controller comprises a first control chip and a second control chip, and the first control chip comprises a first core and a second core; and
a driving controller, comprising an electronic control circuit, a motor, and an on-board charging circuit, wherein the first core is configured to control the electronic control circuit to drive the motor, the second core is used as a vehicle controller, and the second control chip is configured to control the on-board charging circuit, so that an external AC power supply realizes AC charging for the power battery, or the power battery realizes AC discharging to an external load through the AC charging and discharging port;
wherein the on-board charging circuit comprises (1) an AC charging and discharging circuit connected to the AC charging and discharging port for realizing charging and discharging the power battery, and (2) a low-voltage battery supply circuit connected to the low-voltage battery to enable the power battery to charge the low-voltage battery,
wherein the AC charging and discharging circuit and the low-voltage battery supply circuit share a first H bridge and a transformer.