Motor vehicle charging system with remote temperature compensation

• US 20070138997A1
• Filed: 12/16/2005
• Published: 06/21/2007
• Est. Priority Date: 12/16/2005
• Status: Abandoned Application

• Current Assignee: Remy International Incorporated (BorgWarner Incorporated)
• Original Assignee: Remy International Incorporated (BorgWarner Incorporated)
• Inventors: Lawahmeh, Ahmed
• Application Number:
  US11/303,321
• Publication Number:
  US 20070138997A1
• Time in Patent Office: Days
• US Class Current: 320/104
• CPC Class Codes: H02J 7/24 using discharge tubes or semiconductor devices
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A motor vehicle charging system wherein at least one diode is electrically connected between the rechargeable battery and the voltage regulator. The diode(s) is/are biased to permit current flow from the battery to the voltage regulator. The diode(s) and the battery are arranged so that the diode(s) and the battery experience substantially the same ambient temperature.

Claims

1. A motor vehicle charging system comprising:

a voltage regulator;

a rechargeable battery; and

at least one diode electrically connected between said rechargeable battery and said rechargeable battery and said voltage regulator, said at least one diode biased to permit current flow from said rechargeable battery to said voltage regulator, said at least one diode and said rechargeable battery arranged such that said at least one diode and said rechargeable battery experience substantially the same ambient temperature.

2. The motor vehicle charging system of claim 1, wherein said voltage regulator and said a rechargeable battery experience different ambient temperatures.

3. A motor vehicle charging system comprising:

an alternator, said alternator comprising a stator and a rotor, said rotor comprising at least one electrically conductive field winding, said stator comprising at least one electrically conductive stator winding, wherein said rotor is rotatably positioned within said stator such that when a field current flows through said at least one electrically conductive field winding while said rotor rotates within said stator, an induced current is caused to flow in said stator winding;

a battery, said battery and said alternator electrically interconnected such that said induced current flowing from said stator winding charges said battery;

a voltage regulator, said voltage regulator electrically interconnected with said alternator such that an output voltage of said alternator is sensed by said voltage regulator, wherein if said voltage regulator senses a changes in said output voltage of said alternator, said voltage regulator is operable to change said field current in response to such change in said output voltage; and

at least one diode electrically connected between said battery and said voltage regulator, said at least one diode and said battery arranged such that said at least one diode and said battery experience substantially the same ambient temperature, wherein said ambient temperature of said diode affects the extent to which said voltage regulator changes said field current.