High-reliability tractor safety control device and control method

Abstract

The invention provides a high-reliability tractor safety control device and method. The safety control device comprises a vehicle-mounted storage battery, an input switch assembly, a safety controller, an actuator assembly and a whole vehicle CAN bus, and the vehicle-mounted storage battery is connected to the input switch assembly, the safety controller and the actuator assembly; the input switch assembly is connected to the input end of the safety controller, the output end of the safety controller is connected to the actuator assembly, the whole vehicle CAN bus is in bidirectional connection with the safety controller, and when the control device works, all switches in the input switch assembly provide input signals for the safety controller. The safety controller carries out safety strategy operation according to the received input signal and the rotating speed signal sent by the whole vehicle CAN bus and controls the actuator assembly to execute corresponding actions according to the operation result, it can be guaranteed that the tractor is reliably, stably and safely started, driven and parked in the operation process, and the urgent requirement of a tractor user is met.

Description

technical field [0001] The invention belongs to the technical field of tractor safety control, and in particular relates to a high-reliability tractor safety control device and a control method. Background technique [0002] With the improvement of safety awareness in the tractor industry, people's safety requirements for tractors also increase. How to ensure reliable and stable start, drive, and parking of tractors during operation has become a common concern of agricultural machinery manufacturers and agricultural machinery users. There is currently no control device that can meet the safety function and performance requirements of tractors on the market, so developing a high-reliability tractor safety control device has become an urgent need for agricultural machinery users. [0003] The utility model patent with the patent number CN207931652U discloses an intelligent safety controller for vehicles. The intelligent safety controller for vehicles mentioned in this patent ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned safety controller is mainly used in engineering vehicles, and its reliability is not high. The main factors causing the low reliability of the controller are as follows: (1) The normally open relay, normally closed relay, etc. have poor seismic performance and high power The electronic devices are directly designed inside the controller, which reduces the reliability of the controller when it is applied to mobile machinery with large vibrations such as engineering vehicles and tractors; Anti-misoperation processing and directly used for logical judgment, resulting in a decrease in the accuracy of the controller's logical judgment results

Moreover, in terms of the implementation of tractor safety control, in addition to the above problems, there are also problems such as CAN bus signal abnormality, vehicle flameout and power failure but not parked, etc. that affect the safety control results

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