Device and method for supervising function safety of drive-by-wire chassis

The embodiment of the invention discloses a monitoring device and method for function safety of a drive-by-wire chassis, and the device can comprise a control abnormity cut-off module, the first end of the control abnormity cut-off module is connected with an automatic driving controller, and the second end of the control abnormity cut-off module is connected with a drive-by-wire chassis controller. The drive-by-wire chassis controllers are used for controlling the corresponding drive-by-wire chassis; the control abnormity cut-off module is used for interrupting a first control signal which is forwarded by the supervision device and is issued to the drive-by-wire chassis controller by the automatic driving controller when monitoring that the state of the automatic driving controller is abnormal, and sending a refreshing signal for refreshing a bus signal of the drive-by-wire chassis to a communication bus of the drive-by-wire chassis controller; wherein the refreshing signal is a preset initial state signal o