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Vehicle downhill assistance system, method and vehicle including the system

An auxiliary system and vehicle technology, applied to vehicle components, transportation and packaging, external condition input parameters, etc., can solve problems such as energy waste, thermal decay, high brake temperature, etc.

Inactive Publication Date: 2017-12-08
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing downhill assist system completely relies on the hydraulic braking system, which converts the kinetic energy and potential energy of the vehicle into heat energy and consumes it, resulting in a great waste of energy
In addition, excessive use of hydraulic braking methods will cause the brake temperature to be too high and cause thermal decay, which will force the downhill assist system and other electronic braking systems of the vehicle to stop working
Therefore, the traditional downhill assist system can only be triggered in the low speed range

Method used

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  • Vehicle downhill assistance system, method and vehicle including the system
  • Vehicle downhill assistance system, method and vehicle including the system
  • Vehicle downhill assistance system, method and vehicle including the system

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Embodiment Construction

[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0023] figure 1 A schematic structural diagram of the downhill assist system provided by the present invention is shown. Such as figure 1 As shown, the present invention provides a HDC system, the HDC system includes: a wheel brake 30, used to brake the vehicle; and a controller 10, used to control the wheel brake 30 when performing a downhill assist operation For braking, the system also includes: a battery 40; and a motor 20, and the controller 10 is also used to coordinate the braking of the motor 20 and the wheel brake 30 to maintain the vehicle speed within a desired range when performing a downhill assist operation. And when the motor 20 brakes, the mot...

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Abstract

The invention discloses a hill descent control (HDC) system. The hill descent control system comprises a rim brake and a controller, wherein the rim brake is used for braking the vehicle; the controller is used for controlling the rim brake to perform braking when the hill descent control is executed. The hill descent control system is characterized by further comprising a storage battery and a motor, wherein the controller is also used for enabling the motor to be in a working mode of an electricity generator when the hill descent control is executed so as to utilize the motor to supply braking force for the vehicle, and for storing the generated electric energy in the storage battery.

Description

technical field [0001] The present invention relates to the field of automobiles, in particular to a vehicle downhill assistance (Hill Descent Control, HDC) system, method and a vehicle including the system. Background technique [0002] At present, the downhill assist system of new energy vehicles (electric vehicles, hybrid vehicles) and traditional fuel vehicles share the same control strategy. That is, after the downhill assist system is activated, the downhill assist control program requests the Electric Stability Controller (ESC) to actively build pressure, hydraulically pushes the internal friction of the wheel brakes, and converts the kinetic energy of the wheels into heat energy to achieve braking and deceleration. Purpose. [0003] The existing downhill assistance system completely relies on the hydraulic braking system, which converts the kinetic energy and potential energy of the vehicle into heat energy and consumes it, resulting in a great waste of energy. In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18B60W10/188B60W10/08B60W10/26
CPCB60W10/08B60W10/188B60W30/18127B60W2510/1005B60W2510/244B60W2520/10B60W2520/28B60W2552/15B60W2710/083B60W2710/182
Inventor 於涛秦石岩
Owner BEIJING BORGWARD AUTOMOBILE CO LTD
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