Unlock instant, AI-driven research and patent intelligence for your innovation.

Charging device for rechargeable electric energy storage unit

A technology of electric energy storage and charging device, which is applied to battery circuit devices, circuit devices, DC network circuit devices, etc., can solve the problems of no longer running, high electric energy storage load, rise, etc., and achieves the effect of avoiding failure and low cost.

Inactive Publication Date: 2007-02-07
ROBERT BOSCH GMBH
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, below the minimum voltage in the on-board power supply system, it is no longer possible to restart the internal combustion engine with the electric starter provided for the internal combustion engine
That is to say, there is the danger that the vehicle will no longer be able to drive when the internal combustion engine is stopped due to the increased load on the electrical energy store due to the very high static current draw
[0004] While trying to keep static current draw as low as possible by using energy management to switch off as many comfort components as possible, it is not possible to prevent the battery from discharging to the point where it cannot be restarted over an extended period of time

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
  • Charging device for rechargeable electric energy storage unit
  • Charging device for rechargeable electric energy storage unit
  • Charging device for rechargeable electric energy storage unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 A charging device L is shown in detail for a rechargeable electrical energy store B which supplies the on-board power supply system of a motor vehicle powered by an internal combustion engine. In the present exemplary embodiment, the charging device L comprises a self-humidifying fuel cell which is open in the region of the negative electrode so that there is essentially no or only a very slight pressure difference with respect to the ambient atmospheric pressure. A slight pressure increase can be brought about, for example, by a fan 5 arranged upstream of the cathode region, which is preferably used for air cooling of the fuel cells in addition to supplying air for generating electricity and which can be switched on or off as required. In addition to the on-board voltage monitoring device 4 , a fuel accumulator 2 is provided for supplying fuel to the fuel cell, wherein in a simple embodiment the on-board voltage monitoring device is only a voltage comparator. ...

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 rechargeable electric energy accumulator, which supplies an onboard power supply system of a vehicle powered by an internal combustion engine. The invention is charactered in that: the accumulator includes a fuel cell which is formed especially as self-humidifying, air-cooling and non-pressure working.

Description

technical field [0001] The invention relates to a charging device for a rechargeable electrical energy store according to the preamble of claim 1 . Background technique [0002] It is known to use rechargeable electrical energy stores, for example vehicle batteries in the form of lead-acid accumulators, for the on-board power supply system of vehicles powered by an internal combustion engine. It is also known that such rechargeable electrical energy stores are recharged during operation of the internal combustion engine by means of a generator which can be used in the on-board power supply system, so that its state of charge can return to the generally prescribed operating voltage, for example in the automotive range Inside is 13V-15V. During the standstill state of the internal combustion engine, however, the electrical energy store serves as a power source for all electrical consumers that can be connected to the on-board power supply system. [0003] Due to the ever-inc...

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): H02J7/00H01M10/44B60R16/04H02J7/14
CPCH01M8/04955H01M8/04216H01M16/006H01M8/04089H02J2001/004Y02E60/50H02J7/14H01M8/04567H02J2300/30Y02E60/10
Inventor A·谢菲尔特
Owner ROBERT BOSCH GMBH