Battery sensor device

• US 6,787,935 B2
• Filed: 10/22/2002
• Issued: 09/07/2004
• Est. Priority Date: 12/18/1999
• Status: Expired due to Term

• Current Assignee: Bayerische Motoren Werke AG
• Original Assignee: Bayerische Motoren Werke AG
• Inventors: Heim, Andreas
• Primary Examiner(s): Tibbits, Pia
• Application Number:
  US10/168,023
• Publication Number:
  US 20030057770A1
• Time in Patent Office: 686 Days
• Field of Search: 320/105, 320/107, 320/104, 320/111, 320/113, 320/115, 320/150, 324/426
• US Class Current: 307/10.1
• CPC Class Codes: G01R 1/203 Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts resistors in general H01C; microwave or radiowave terminations H01P1/26; coupling devices H01R
• CPC Class Codes: G01R 31/006 on road vehicles, e.g. automobiles or trucks testing of ignition installations peculiar to internal combustion engines F02P17/00
• CPC Class Codes: G01R 31/364 Battery terminal connectors with integrated measuring arrangements
• CPC Class Codes: G01R 31/374 with means for correcting the measurement for temperature or ageing
• CPC Class Codes: G01R 31/3842 combining voltage and current measurements
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 2200/108 Normal resistors
• CPC Class Codes: H01M 50/581 in response to temperature
• CPC Class Codes: H01R 11/287 Intermediate parts between battery post and cable end piece
• CPC Class Codes: H01R 13/6683 with built-in sensor
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery sensor device has a fastening device that can be directly fastened to the pole of a vehicle battery. The battery sensor and the fastening device are combined to an integrated component. The fastening device is fastened to a single pole only and is provided with a terminal that is conventional in motor vehicles. Alternatively or additionally, the component is adapted to conventional battery pole troughs as regards its shape and size.

Claims

1. A battery sensor arrangement comprising:

a fastening device which can be connected directly to a pole of a battery, and

a battery sensor combined with the fastening device into an integrated structural unit,

wherein the fastening device is connected only to a single pole of the battery,

wherein the fastening device has a clamp which is conventional for a battery connection cable,

wherein the battery sensor has a planar measuring shunt and an electronic unit,

wherein the measuring shunt is a resistance element with two resistance connections constructed as mechanical carriers,

wherein the electronic unit is fastened to the resistance connections, and

wherein the resistance element is integrated in the electronic unit in a circuit-related manner.

3. The battery sensor arrangement according to claim 1, wherein the battery sensor is fastened, by way of a first of said resistance connections in a conducting manner and by way of a second of said resistance connections in an insulating manner, to a body of the clamp, and wherein a connection cable can be connected to the second of said resistance connections.

4. The battery sensor arrangement according to claim 1, wherein the electronic unit is connected with a temperature sensor which is arranged in a heat-conducting manner on a resistance connection or directly on a body of the clamp.

5. The battery sensor arrangement according to claim 1, wherein the electronic unit has a connector to which at least one supply cable to the other pole of the battery can be connected.

6. The battery sensor arrangement according to claim 1, wherein the electronic unit has a connector to which at least one communication line to other electronic equipment can be connected.

7. The battery sensor arrangement according to claim 1, wherein the electronic unit has a unit which determines at least one of a battery voltage, a battery current, and a battery temperature.

8. The battery sensor arrangement according to claim 7, and further comprising a resistance connection which has an interruption which can be closed by way of a power switch, wherein the power switch can be controlled by the unit which determines at least one of a battery voltage, a battery current, and a battery temperature.

2. A battery sensor arrangement comprising:

a fastening device which can be connected directly to a pole of a battery, and

a battery sensor combined with the fastening device into an integrated structural unit,

wherein the fastening device is connected only to a single pole of the battery,

wherein the fastening device has a clamp which is conventional for a battery connection cable,

wherein the battery sensor has a planar measuring shunt and an electronic unit,

wherein the measuring shunt is a resistance element with two planar resistance connections constructed as mechanical carriers, and

wherein the electronic unit or a carrier board of the electronic unit is fastened to the planar resistance connections by an electrically conducting material.

9. The battery sensor arrangement according to claim 2, wherein the battery sensor is fastened, by way of a first of said resistance connections in a conducting manner and by way of a second of said resistance connections in an insulating manner, to a body of the clamp, and wherein a connection cable can be connected to the second of said resistance connections.

10. The battery sensor arrangement according to claim 2, wherein the electronic unit is connected with a temperature sensor which is arranged in a heat-conducting manner on a resistance connection or directly on a body of the clamp.

11. The battery sensor arrangement according to claim 2, wherein the electronic unit has a connector to which at least one supply cable to the other pole of the battery can be connected.

12. The battery sensor arrangement according to claim 2, wherein the electronic unit has a connector to which at least one communication line to other electronic equipment can be connected.

13. The battery sensor arrangement according to claim 2, wherein the electronic unit has a unit which determines at least one of a battery voltage, a battery current, and a battery temperature.

14. The battery sensor arrangement according to claim 13, and further comprising a resistance connection which has an interruption which can be closed by way of a power switch, wherein the power switch can be controlled by the unit which determines at least one of a battery voltage, a battery current, and a battery temperature.