An electric power steering dual-control system and its cascade refreshing method
A technology of electric power steering and power supply system, applied in electric steering mechanism, power steering mechanism, steering mechanism, etc., to simplify the operation steps, reduce the possibility of false refresh, and achieve the effect of strong universality
Active Publication Date: 2021-12-31
舒航(苏州)机电科技有限公司
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Problems solved by technology
[0007] Purpose of the invention: Aiming at the problems and deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide an electric power steering dual control system and its cascading refreshing method, which can solve the problem of single-chip microcomputer separation on both sides of the electric power steering dual electric control system. Disadvantages of the technical method of block refreshing multiple data or programs
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[0043] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.
[0044] Such as Figure 1-4 The electric power steering dual control system shown includes the main battery power supply system, the backup power supply subsystem, the A-side ignition unit, the B-side ignition unit, the A-side controller subsystem, the B-side controller subsystem, and the sensor subsystem , A-side network system, B-side network system and six-phase motor, the main battery power supply system is connected to the A-side controller subsystem through the A-side ignition unit, and the backup power supply subsystem is connected to the B-side controller subsystem through the B-side ignition unit System connection, the A-side controller subsystem and the B-side controller subsystem are connected to the six-phase motor, the A-side controller subsystem is connected to the CAN network of the vehicle through the A-side network system, and t...
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The invention discloses a split-type electric power steering dual-control system, which includes a main battery power supply system, a backup power supply subsystem, an A-side ignition unit, a B-side ignition unit, an A-side controller subsystem, a B-side controller subsystem, The sensor subsystem, the A-side network system, the B-side network subsystem and the six-phase motor, the main battery power supply system passes through the A-side ignition unit and the A-side controller subsystem, and the backup power supply subsystem passes through the B-side ignition unit and the B-side The controller subsystem, the A-side controller subsystem is connected to the vehicle CAN network through the A-side network system, the B-side controller is connected to the vehicle CAN network through the B-side network system, and the A-side controller subsystem is connected to the B-side controller The inter-ECU-domain common ground line and the inter-ECU-domain private communication line are set between the subsystems. Upgrade the typical electric power steering dual electronic control system to "split type", and upgrade the communication mode of the electronic control subsystem from CAN to CAN FD, which improves the timeliness of real-time two-way data interaction and enhances the efficiency of system cascade refresh .
Description
technical field [0001] The invention relates to the technical field of electronic control application of automobile chassis, in particular to an electric power steering dual-control system and a cascade refreshing method thereof. Background technique [0002] The typical main components of an electric power steering dual electronic control system with independent redundancy characteristics include: two sets of battery-powered subsystems (Primary Battery and Secondary Battery), sensor subsystems, dual-side controller subsystems, dual-side ignition and Network subsystem, six-phase motor, a total of 5 parts, the A and B sides of the car controller are often arranged on the circuit board during hardware PCB design, which can reduce manufacturing costs, and has a good common ground effect of the circuits on both sides. Side components adopt isomorphic design and other advantages. The above-mentioned electrical architecture as a whole presents the characteristics of left-right sy...
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IPC IPC(8): B62D5/04G06F8/65
CPCB62D5/0457G06F8/65
Inventor 杜春洋张善
Owner 舒航(苏州)机电科技有限公司