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

Claim 0:
1. An integrated controller for an 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 comprises:
a first control chip, comprising a first core and a second core, wherein the first core is configured to control an electronic control circuit to drive a motor, and the second core is used as a vehicle controller; and
a second control chip, configured to control an 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.