Software electronic brake caliper friction plate abrasion alarming system and method

Abstract

The invention relates to the technical field of brake systems, in particular to a software electronic brake caliper friction plate abrasion alarming system and method. The software electronic brake caliper friction plate abrasion alarming system is characterized in that a driving motor and retarding mechanism is arranged on one side of a brake caliper shell; the output end of the driving motor andretarding mechanism is connected with one end of a lead screw; a piston is arranged on the outer side of the other end of the lead screw; the top of the piston abuts against one side of an inner friction plate; the other side of the inner friction plate abuts against one side of a brake disc; the other side of the brake disc abuts against an outer friction plate, and the outer friction plate abuts against the inner wall of the other side of the brake caliper shell; and a screw nut is arranged on the lead screw. According to the provided software electronic brake caliper friction plate abrasion alarming system and method, compared with the prior art, a software mode is employed, the abrasion degree of the friction plates is calculated indirectly by controlling the screw nut, application ofa physical component can be avoided, the hardware structure is simplified, and the cost is lowered.

Description

technical field [0001] The invention relates to the technical field of brake systems, in particular to a software-type electronic brake caliper friction lining wear alarm system and method. Background technique [0002] The friction plate of the electronic brake caliper system is a consumable product. Every time the brake is used, the friction material on the friction plate will wear out. The thickness of the friction material is certain. When the wear reaches the limit position, the friction plate needs to be replaced. The friction linings have to be replaced several times. If the friction plate cannot be replaced in time, the failure of the friction plate will seriously affect the driving safety. Therefore, the brake caliper is required to have the wear alarm function of the friction plate, especially in intelligent vehicles such as automatic driving, where the driver gradually withdraws from the management of the vehicle safety status. The degree of wear of the friction ...

AI Technical Summary

Problems solved by technology

There are mainly two types of friction lining wear alarm systems commonly used today. One is the mechanical friction lining alarm. When the friction material wears to the limit, the mechanical alarm will make a harsh sound when it contacts the brake disc to remind the driver to check the friction lining. This solution will generate huge noise, and in an environment where it is inconvenient to replace the friction lining, the noise will continue, which seriously affects the driving experience; the other is an electronic friction lining wear alarm, which is a sensor. Under normal working conditions, it is generally in the normally open state. With the wear of the friction material, when the wire of the sensor is worn off, the sensor becomes an open circuit state, and an alarm prompt appears on the instrument panel, reminding to replace the friction plate in time. This scheme must ensure that The sensor is always in normal working condition. Once the sensor fails, there will be no alarm reminder, which has certain potential safety hazards.

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