56results about How to "Implement redundant control" patented technology

The invention provides a compact integrated redundancy controller and a controlling method thereof. The controller is provided with two controllers which have identical structure and can be used alternatively by displacing. Each controller is provided with a storage chip, a flash memory chip, a firmware chip and a programmable apparatus which are respectively connected with a main control chip; the controller is also provided with a first serial port transceiver, a second serial port transceiver, a PCI bridge piece and a network card controller. The serial port transceivers are connected witha CPCI connector by a RS422 serial port; the network card controller is connected with the CPCI connector by an Ethernet port; the PCI bridge piece is connected with the CPCI connector by a CPCI bus;the serial port transceivers are also connected with a maintenance serial port; a programmable apparatus PLD is also connected with the CPCI connector by a HA control signal. The methods comprise thestarting method of main / standby controllers, the method that a standby controller is upgraded into a main controller automatically and a check point protocol control method when the main controller and the standby controller are switched in a system. The controller and the method can upgrade the system controller of a traditional CPCI system into a double-redundancy standby system, which solves the hidden trouble that single-point failure can easily occur in a CPCI system controller.

An embodiment of the present invention provides an electric vehicle safety control method, an electric vehicle and a storage medium. The electric vehicle safety control method includes: when the position detection device is normal, using the position detection device to detect the position angle of the motor rotor obtained and rotating speed to perform closed-loop control on the electric motor of the electric vehicle; when the position detection device breaks down, use the estimated position angle and estimated rotating speed of the motor rotor observed by the motor model to perform closed-loop control on the electric motor of the electric vehicle. The embodiment of the present invention solves the problem that the whole vehicle loses power when a failure occurs through the redundant control of the electric vehicle position detection device, realizes risk control and redundant control, ensures the normal driving of the vehicle, and leaves enough time margin Drive the vehicle to a safe area or a 4S shop for maintenance.