Arrangement and method for measurements on HV battery

• US 9,067,499 B2
• Filed: 09/11/2012
• Issued: 06/30/2015
• Est. Priority Date: 09/14/2011
• Status: Expired due to Fees

• Current Assignee: V2 Plug-In Hybrid Vehicle Partnership Handelsbolag
• Original Assignee: V2 Plug-In Hybrid Vehicle Partnership Handelsbolag
• Inventors: Karlsson, Leif, Josefsson, Mats
• Primary Examiner(s): DIAO, M BAYE
• Application Number:
  US13/610,070
• Publication Number:
  US 20130063151A1
• Time in Patent Office: 1,022 Days
• Field of Search: 324/426, 429/92, 429/93, 246/1.C
• US Class Current: 1/1
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 3/12 Recording operating variables ; Monitoring of operating variables
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 58/10 for monitoring or controlling batteries
• 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 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

An arrangement (1) for measuring current on a high voltage battery (12) for an electrical vehicle, wherein the battery comprises a service disconnect switch (13) which is adapted to break the connection between the positive battery terminal (14) and the positive battery output terminals (15). The connection between the positive battery terminal (14) and the positive battery output terminals (15) comprises an external circuit line (21) extending out of the service disconnect switch (13) such that a loop is created, which is adapted to receive a current clamp for measuring the current through the circuit line (21).

Claims

1. An arrangement for measuring current on a high voltage battery for an electrical vehicle, where the battery comprises a service disconnect switch which is adapted to break the connection between the positive battery terminal and the positive battery output terminals, wherein the connection between the positive battery terminal and the positive battery output terminals comprises an external circuit line extending out of the service disconnect switch and returning to the battery such that a loop is created, which is adapted to receive a current clamp for measuring the current through the circuit line.

2. An arrangement according to claim 1, wherein the service disconnect switch further comprises a positive voltage measuring terminal connected to the circuit line and a negative voltage measuring terminal connected to the negative terminal of the battery.

3. An arrangement according to claim 1, wherein the circuit line is insulated with an insulating material.

4. An arrangement according to claim 3, wherein the circuit line is rigid.

5. An arrangement according to claim 3, wherein the circuit line is flexible.

6. A vehicle, comprising the arrangement according to claim 1.