Electronic steering lock with CAN bus

Abstract

The invention provides an electronic steering lock with a CAN bus, which belongs to the technical field of automobiles and solves the problem that a car crash may be caused by the locking operation of a performer even as a result of a locking command given by mistake by a controller in the prior art. The electronic steering lock with the CAN bus is connected with an electronic steering lock controller and comprises a bolt and a bolt driver for driving the bolt to carry out locking / unlocking operation. The electronic steering lock also comprises a CAN transceiver, a system power source module,a limited power source module, two sensors, a main CPU and an auxiliary CPU, wherein the main CPU and the auxiliary CPU can communicate with each other, the main CPU communicates with the CAN bus through the CAN transceiver and can acquire the information of each controller from the CAN bus, the two sensors can acquire the information of the bolt, and the main CPU and the auxiliary CPU can control the electronic steering lock to lock or unlock according to the information. The electronic steering lock with the CAN bus has the advantages of high mistake recognition capability and high locking / unlocking control accuracy.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to an electronic steering lock, in particular to an electronic steering lock with a CAN bus. Background technique [0002] Motor vehicle steering locks usually adopt a mechanical structure, mainly including external mechanical locks and internal mechanical locks. [0003] External mechanical locks work by connecting a vehicle's brake pedal to the steering wheel using a long steel bar with a bend at the end. When the steering lock is locked, the steering wheel cannot be steered at a large angle, nor can the brake pedal be depressed, thereby realizing the anti-theft function. The external mechanical lock itself has a certain anti-shear and anti-saw function, but the steering wheel it locks is made of a small aluminum alloy tube embedded in plastic, which is easier to be cut and sawed to form a gap. If the mechanical steering lock is removed from the If it is taken out from the not...

AI Technical Summary

Problems solved by technology

Although this technical solution solves the above-mentioned problems of the mechanical steering lock well, there are still some problems. The actuator sends an opening and closing instruction to control the actuator. The actuator has no judgment function on the control instruction sent by the controller. What instruction is sent by the controller, the actuator will execute the corresponding instruction. If the controller fails and sends a wrong instruction, At this time, the actuator will execute the wrong command. When the vehicle is running at high speed, the controller will issue a lock command by mistake, and the actuator will execute the lock, which may cause a car crash.

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