Vacuum boosting device of electric vehicle

A vacuum booster and vacuum booster technology, which is applied in the direction of brake transmission, brakes, vehicle components, etc., can solve the problems of reduced service life and increased noise, and achieve the goal of reducing system cost, reducing energy consumption, and improving system reliability. Effect

Inactive Publication Date: 2012-03-14
WENZHOU UNIVERSITY
View PDF10 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The vacuum booster pump that works normally in plain areas will cause problems suc

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vacuum boosting device of electric vehicle
  • Vacuum boosting device of electric vehicle
  • Vacuum boosting device of electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] Such as figure 1 , 2 Shown is a vacuum booster for electric vehicles, including a brake pedal 1, a vacuum booster 2, a brake master cylinder 3, an electric vacuum pump 4, a vacuum accumulator 5, an electronic control device 6, and a brake master cylinder 3 The vacuum booster 2 is connected to the brake pedal 1, and the electric vacuum pump 4 and the vacuum booster 2 as well as the vacuum accumulator 5 and the vacuum booster 2 are connected through vacuum pipelines. The electric vacuum pump 4 is connected to the electronic control The device 6 is electrically connected, the electronic control unit 6 is connected with a vacuum pressure sensor 7 and an atmospheric pressure sensor 8, the vacuum pressure sensor 7 is mounted on the vacuum accumulator 5, and the atmospheric pressure sensor 8 is connected to the outside world air connection.

[0011] With the above structure, the vacuum in the vacuum accumulator 5 is measured by the vacuum pressure sensor 7, and the external ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a vacuum boosting device of an electric vehicle. The vacuum assisting device comprises a braking pedal, a vacuum booster, a brake main cylinder, an electric vacuum pump, a vacuum energy accumulator and an electronic control device; the brake main cylinder is connected with the brake pedal through the vacuum booster and the vacuum booster is also connected with the vacuum energy accumulator and the electric vacuum pump; the electric vacuum pump is electrically connected with the electronic control device and the electronic control device is also connected with a vacuum pressure sensor and an atmosphere pressure sensor; the vacuum pressure sensor is installed on the vacuum energy accumulator and the atmosphere pressure sensor is connected with the outside air. The vacuum degree in the vacuum energy accumulator is measured by using the vacuum pressure sensor and the outside atmosphere pressure is measured by using the atmosphere pressure sensor; after the vacuum degree and the outside atmosphere pressure are measured, sensor signals are sent to the electronic control device and actions of the electric vacuum pump are adjusted and controlled through comparing the sensor signals by the electronic control device, so that the boosting device can be used in areas with low altitudes and also can be normally used in areas with high altitudes.

Description

technical field [0001] The invention relates to a vacuum booster, in particular to a vacuum booster for an electric vehicle. Background technique [0002] At present, conventional vehicles are basically equipped with brake boosting devices, especially in small and medium displacement vehicles, vacuum boosting brake devices are generally used. For gasoline engine vehicles, the pressure difference between the vacuum degree and the atmospheric pressure generated in the intake manifold when the engine is working, that is, the pressure difference on both sides of the diaphragm in the vacuum booster, is used to help push the piston of the brake master cylinder. , to reduce the driver's brake pedal force. For diesel engine vehicles, the diesel engine is generally used to drive the vacuum pump through a belt to generate a vacuum boosting effect during operation. For electric vehicles, the motor itself cannot generate a vacuum negative pressure; and the speed of the driving motor i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B60T13/52B60T13/72
Inventor 周斯加赵克刚龙江启
Owner WENZHOU UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap