Hydraulic hybrid vehicle flexible braking device

A technology for hybrid vehicles and braking devices, which can be applied to electric braking systems, electric vehicles, vehicle components, etc., and can solve the problems of the driver not being able to obtain the reaction force of the brake pedal, the lack of nonlinear brake operating force feedback, and the inconvenience Feedback or reaction and other issues, to achieve the effect of eliminating discomfort, perfect function, compact and reasonable structure

Inactive Publication Date: 2010-07-14
HARBIN INST OF TECH AT WEIHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of function, the brake pedal mechanism (device) of this kind of hydraulic hybrid vehicle existing abroad solves the analysis of the driver's braking intention and the braking execution action, but the action process of the driver stepping on the brake pedal Among them, there is a lack of non-linear brake operating force feedback for

Method used

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  • Hydraulic hybrid vehicle flexible braking device
  • Hydraulic hybrid vehicle flexible braking device
  • Hydraulic hybrid vehicle flexible braking device

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Embodiment Construction

[0013] from figure 1 It can be seen from the figure that a flexible brake device for a hydraulic hybrid vehicle in the present invention includes a liquid storage tank 1, a brake master cylinder 2, a controllable throttle valve 3, a pressure-sensitive accumulator 4, a pressure sensor 5, a brake Moving piston 6, brake light switch 7, brake pedal 8, brake controller 9.

[0014] The liquid storage tank 1 is used to store the brake fluid of the brake master cylinder 2, and the piston action of the brake master cylinder 2 is actuated by the brake pedal 8 operated by the driver through the oil fluid of the brake operation circuit, and the throttle can be controlled. The flow valve 3 is used to adjust the flow of oil entering the pressure-sensitive accumulator 4 and the working piston chamber of the brake master cylinder 2 . The pressure sensor 5 is used to convert the pressure signal of the brake actuation circuit into an electrical signal. The brake circuit is composed of a brake...

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Abstract

The invention relates to a hydraulic hybrid vehicle flexible braking device. A pressure sensor and a pressure sensing energy accumulator are connected in series between a brake pedal and a brake main cylinder of the main structure thereof, the brake pedal acts to cause oil to flow, the flow is diverted to the pressure sensing energy accumulator and enters into the brake main cylinder via a controllable throttle valve, to construct a flexible connection between the brake pedal and the brake main cylinder. An energy accumulator pressure signal subject to signal conversion of the brake pedal of a driver is collected to be sent into a brake controller to be used for controlling the hydraulic regenerative braking and friction braking of the vehicle to work cooperatively, and integrating braking work, brake signal collection and control functions. The pressure sensing energy accumulator can feed vivid brake pedal operating force sense back to the driver. The invention not only has the function of collecting intention signal of the driver to control checking brake, but also has operating sense, the brake signal is sent to the vehicle driving main control unit in the form of electrical signal, thus realizing vehicle brake strategy coordination and energy management control.

Description

technical field [0001] The invention relates to a vehicle brake operation and control technology, in particular to a flexible brake device for hydraulic hybrid vehicles. Background technique [0002] We know that the service brake manipulation of a traditional vehicle is achieved by the driver depressing the brake pedal. The brake pedal is directly connected to the brake master cylinder (hydraulic transmission), brake lever (rod type and cable transmission) or brake control valve (pneumatic or hydraulic power brake). The driver's operation on the brake pedal is directly used to control the (friction) braking force, and the driver adjusts the braking process of the vehicle through the sensory feedback of the vehicle speed. [0003] In recent years, hybrid vehicle technology has become a research and development hotspot for major automobile companies. A hybrid vehicle refers to a vehicle that uses two or more power devices as the driving energy of the vehicle. Often divided...

Claims

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Application Information

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IPC IPC(8): B60L7/18B60L7/26
Inventor 刘涛赵立军罗念宁张舒白洋
Owner HARBIN INST OF TECH AT WEIHAI
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