Overheat protection control method and device for vehicle and its electric power steering system
An electric power steering and overheating protection technology, applied in the field of vehicles, can solve the problems of sacrificing driving comfort, reducing system power, failing to meet the requirements of safety level, etc., to achieve the effect of improving safety and comfort
Active Publication Date: 2020-02-28
BAIC MOTOR CORP LTD
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Problems solved by technology
[0004] The above two control strategies are at the cost of sacrificing driving comfort, that is, reducing the power of the system to protect the EPS system from overheating
Moreover, with the application of advanced functions of the EPS system, the power of the motor is increasing day by day, the above two control strategies may not be able to meet the requirements of the growing EPS system for higher safety levels
Method used
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[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0032] The following describes the overheat protection control method of the electric power steering system of the vehicle, the non-transitory computer readable storage medium, the overheat protection control device of the electric power steering system of the vehicle and the vehicle proposed by the embodiments of the present invention with reference to the accompanying drawings.
[0033] figure 1 It is a flow chart of an overheat protection control method for a vehicle electric power steering system according to an embodiment of...
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The invention discloses a vehicle and an overheating protection control method and device for an electric power-assisted steering system thereof. The electric power-assisted steering system comprisesa first fan corresponding to an EPS controller and a second fan corresponding to a motor; the method comprises the following steps of obtaining the speed of the vehicle, the temperature of the EPS controller and the temperature of the motor; according to the speed of the vehicle, the temperature of the EPS controller and the temperature of the motor, controlling the first fan and the second fan separately to prevent the electric power-assisted steering system from generating an overheating phenomenon. By means of the method, system overheating generated at different vehicle speeds is differently treated, on the premise of ensuring the EPS safety performance, the temperature of the EPS controller and the temperature of the motor can be reduced by controlling the first fan and the second fanto work without power-assisted degradation, and therefore the driving safety and comfort can be improved.
Description
technical field [0001] The present invention relates to the technical field of automobiles, in particular to an overheat protection control method for an electric power steering system of a vehicle, a non-transitory computer-readable storage medium, an overheat protection control device for an electric power steering system of a vehicle, and a vehicle. Background technique [0002] At present, the EPS controller and motor temperature protection strategies of the EPS (Electric Power Steering) system generally fall into the following two categories: [0003] One is the EPS system equipped with a temperature sensor for the EPS controller and the motor. The operating current of the system can be controlled according to the temperature value detected by the temperature sensor and the maximum operating temperature of each component, and the calorific value of the EPS system can be reduced, so as to control the EPS system. Overheating protection. The other is for the EPS system w...
Claims
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IPC IPC(8): B62D5/04H02K9/04
CPCB62D5/0481B62D5/0496H02K9/04
Inventor 梁阿南
Owner BAIC MOTOR CORP LTD