Drive apparatus and electric vehicle

A drive apparatus, used in an electric vehicle, wherein the electric vehicle comprises a first motor, a second motor, a first inverter configured to supply power to the first motor, a second inverter configured to supply power to the second motor, and the drive apparatus, and the drive apparatus comprises a first control chip, a second control chip, a first drive circuit, a second drive circuit, a watchdog chip, and a reset shutdown circuit;

• the first drive circuit is configured to generate a drive signal of the first inverter based on signals output by the first control chip and the reset shutdown circuit;
• the second drive circuit is configured to generate a drive signal of the second inverter based on signals output by the second control chip and the reset shutdown circuit;
• the first control chip is configured to:
• send a first watchdog feeding signal to the second control chip,
• receive a second watchdog feeding signal sent by the second control chip,
• perform fault monitoring on the second control chip based on the second watchdog feeding signal, and
• when the second control chip is faulty, control the reset shutdown circuit to send a first shutdown signal to the second drive circuit and to send a first reset signal to the second control chip, wherein the first shutdown signal is used to shut down drive torque output by the second motor, and the first reset signal is used to reset the second control chip;
• the second control chip is configured to:
• receive the first watchdog feeding signal, send the second watchdog feeding signal to the first control chip,
• perform fault monitoring on the first control chip based on the first watchdog feeding signal, and
• when the first control chip is faulty, control the reset shutdown circuit to send a second shutdown signal to the first drive circuit and to send a second reset signal to the first control chip, wherein the second shutdown signal is used to shut down drive torque output by the first motor, and the second reset signal is used to reset the first control chip;
• and
• the watchdog chip is configured to supply power to the first control chip, the second control chip, and the reset shutdown circuit.