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Electronic parking system with four-wheel braking

An electronic parking and four-wheel braking technology, applied in the direction of braking safety system, can solve problems such as easy occurrence of danger and long braking time, to ensure parking reliability, fast vehicle deceleration and stop, and improve the use of effect of life

Pending Publication Date: 2019-09-20
WANXIANGQIANCHAO CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of dynamic braking, it takes a long time to brake only by the rear axle, which is prone to danger

Method used

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  • Electronic parking system with four-wheel braking
  • Electronic parking system with four-wheel braking

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with accompanying drawing:

[0016] like figure 1 As shown, the four-wheel braking electronic parking system mainly includes a power supply module, a signal processing module, a left and right front wheel power drive module, a left and right rear wheel power drive module, an EPB switch, a CAN module, an inclination sensor, and an MCU module , The caliper actuator is divided into left front wheel, left rear wheel, right front wheel, and right rear wheel caliper actuator, each of which can be controlled separately; the system is powered by the battery, and the external EPB switch and ignition switch signals are processed by the signal processing module. The system is connected to the CAN network of the vehicle and communicates with other controllers of the vehicle through the CAN module; the system has a built-in inclination sensor for detecting the parking angle of the vehicle; the front wheel power d...

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Abstract

The invention discloses an electronic parking system with four-wheel braking. The electronic parking system comprises a power module, a signal processing module, left-right front wheel power driving modules, left-right rear wheel power driving modules, an EPB switch, a CAN module, a tilt angle sensor and an MCU module, caliper executing mechanisms are composed of a left front wheel caliper executing mechanism, a left rear wheel caliper executing mechanism, a right front wheel caliper executing mechanism and a right rear wheel caliper executing mechanism, and all paths can be independently controlled; the system is powered by a storage battery, a signal of the external EPB switch and a signal of an ignition switch are processed by the signal processing module, and the system is hung on a whole vehicle CAN; and the tilt angle sensor is arranged in the system and is used for detecting the parking angle of a vehicle. The electronic parking system has the beneficial effects that larger parking force is provided for parking of the vehicle, meanwhile, the parking force of a front shaft and a rear shaft can be reasonably distributed according to the vehicle parking gradient and the vehicle head orientation, the parking reliability is guaranteed, so that the service lives of the caliper executing mechanisms are prolonged; and meanwhile, deceleration and stopping of the vehicle can be guaranteed to be realized more quickly under the condition of dynamic parking.

Description

technical field [0001] The invention relates to an electronic parking brake system, mainly an electronic parking system for four-wheel braking. Background technique [0002] Passenger cars are now equipped with a large number of electronic parking brake systems (EPB), which can realize the parking and releasing functions of the vehicle through a button. The EPB actuator is installed on the rear axle of the vehicle, and the motor drives the caliper actuator to act, relying on the friction generated by the brake disc and the friction plate to provide parking brake. [0003] In the existing technical solution, only the rear axle has a parking brake mechanism. When the slope is large, the calipers need to provide a large parking force. The feature requirements are high. If the car is often parked on a slope, the service life of the EPB system is likely to be affected under the working conditions that frequently require a large parking force. When the vehicle is fully loaded a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22
CPCB60T17/22
Inventor 王志伟
Owner WANXIANGQIANCHAO CO LTD
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