Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for limiting hydraulic brake with the maximum invoked break power

A technology of hydraulic brakes and braking power, applied in the directions of hydraulic brakes, hydraulic resistance brakes, brakes, etc., can solve problems such as limiting the availability of hydraulic brakes

Inactive Publication Date: 2008-02-06
VOITH TURBO GMBH & CO KG
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this undesirably limits the usability of hydraulic brakes

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
  • Method for limiting hydraulic brake with the maximum invoked break power
  • Method for limiting hydraulic brake with the maximum invoked break power
  • Method for limiting hydraulic brake with the maximum invoked break power

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] A schematic diagram of an engine cooling circuit 2 of a motor vehicle can be seen in FIG. 1 . In this engine cooling circuit 2, coolant is circulated in the circuit by means of a coolant pump 4, wherein the circuit passes through the vehicle radiator 5 (liquid-gas heat exchanger), in which the The heat is rejected to the surrounding environment. In addition, coolant flows through the vehicle drive engine 3 in order to cool the vehicle drive engine, and this coolant is the working fluid of the hydraulic brake 1 arranged in the engine cooling circuit 2 .

[0037] The arrangement of the different components in the engine cooling circuit 2 is arbitrarily selected in FIG. 1 and can be designed in different ways.

[0038] Graphs can be seen in FIGS. 2 to 5 which correspond directly to the rotational speed n of the motor vehicle's drive engine exactly two temperature curves. The two temperature curves are each in the form of a straight line with a constant slope in the rotat...

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 relates to a method for limiting the maximum callable braking power of hydraulic brakes in automobiles. The heat generated by the hydraulic brakes is discharged through the coolant in the engine cooling cycle of the driving engine of the automobile. Drive the engine-driven coolant pump to circulate in the engine cooling cycle, with the following steps: pre-setting the adjustment intervention temperature; pre-setting the adjustment target temperature; detecting the coolant temperature continuously or at time intervals; if the coolant temperature rises to At or above the control intervention temperature, the maximum available braking power of the hydrodynamic brake is reduced with a predetermined gradient; the gradient of the reduction depends on the difference between the control target temperature and the control intervention temperature, the control intervention Both the temperature and the control target temperature are predefined as a function of the rotational speed of the vehicle's drive engine.

Description

technical field [0001] The invention relates to two methods for limiting the maximum available braking power of hydraulic brakes in motor vehicles, if the heat generated by the hydraulic brakes is dissipated by means of coolant in the cooling circuit of the motor vehicle's engine and the coolant is controlled by means of The coolant pump driven by the vehicle drive motor circulates in the engine cooling circuit. Background technique [0002] Hydraulic brakes are also called hydraulic retarders. During braking operation, heat is generated due to fluid friction. This heat must be discharged from the hydraulic brakes so that the hydraulic brakes will not be damaged. The removal of heat from such hydraulic brakes in automobiles is usually carried out through the engine cooling circuit, that is, the coolant in the engine cooling circuit is either directly used as a working fluid for the hydraulic brake, or used to pass through a heat exchanger, Usually a liquid-liquid heat excha...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B60T1/087B60T8/88B60T17/18
CPCF16D57/00B60T10/02B60T17/04
Inventor H·J·贝茨
Owner VOITH TURBO GMBH & CO KG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com