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

Vehicle-use power supply management apparatus

A power management device and power management technology, applied in circuit devices, battery circuit devices, circuits or fluid pipelines, etc., can solve problems such as increasing system manufacturing costs, and achieve the effect of preventing sharply accelerated frequency and low cost

Inactive Publication Date: 2009-04-22
DENSO CORP
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This increases the manufacturing cost of the system

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
  • Vehicle-use power supply management apparatus
  • Vehicle-use power supply management apparatus
  • Vehicle-use power supply management apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 is a diagram showing an overall configuration of a vehicle power supply system including the vehicle power management device 100 according to an embodiment of the present invention. Such as figure 1 As shown, the vehicle power supply system includes: a vehicle alternator 10, a battery 20, electrical loads 30, 32, 34, 36, electronic control units (ECU, Electronic Control Unit) 40, 42, 44, a switch 50 and a vehicle power management device 100. These components are connected to a power line P and a communication line C.

[0021] Alternator 10 is driven by a vehicle engine (not shown) to generate electrical power to be supplied to electrical loads 30 , 32 , 34 , 36 and to charge battery 20 . Alternator 10 includes a regulator 12 . The ECU 40 is used to control the operation of the electric load 30 . The ECU 42 is used to control the operation of the electrical load 32 . The ECU 44 is used to control the operation of the electrical load 34 . These electrical ...

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 vehicle-use power supply management apparatus includes a first function of detecting start of any of electrical loads mounted on a vehicle, a second function of detecting a battery voltage, a third function of determining whether or not load restriction should be performed on the basis of the battery voltage detected by the second function, a fourth function of making a determination of whether or not the detected electrical load can be applied with load restriction, and a fifth function of applying load restriction to the detected electrical load if a determination result of the third function and a determination result of the fourth function are affirmative. The third function is configured to make an affirmative determination if a drop of the battery voltage immediately after the start of the detected electrical load is larger than a predetermined value and the duration of the drop exceeds a predetermined time period.

Description

technical field [0001] The invention relates to a vehicle power management device. Background technique [0002] An on-vehicle power supply system is known which has a power controller for limiting the activation of some electrical loads when the power supply capacity of the system falls below a predetermined level. See, for example, Japanese Patent Application Publication No. 2007-161016. This system is used to distinguish between a first group of electrical loads whose starting time cannot be delayed and a second group of electrical loads whose starting time can be delayed, and prohibits the starting of this second group of electrical loads to prevent multiple electrical loads from starting at the same time , thereby suppressing a drop in the power supply voltage. [0003] However, in the on-vehicle power supply system described in the above patent document, if a plurality of electrical loads whose start-up time cannot be delayed are started simultaneously, a large curre...

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): B60R16/02
CPCH02J1/14Y02T10/92B60R16/03H02J7/1438H02J2310/46
Inventor 高桥伸
Owner DENSO CORP