Method and apparatus for testing the electrical connection of so

Details Method and apparatus for testing the electrical connection of so Method and apparatus for testing the electrical connection of so

1996-12-02

1998-09-22

Dombroske, George M.

Measuring and testing

Internal combustion engine or related engine system or...

Compression

G01M 1500, H04B 500, F02M 6500

Patent

active

058116710

ABSTRACT:
A method and an apparatus for testing the electrical connection of electrically controlled, electromagnetically operated injection valves of an internal-combustion engine which are equipped with solenoid coils. The cabling of such injection valves is tested in a non-contact manner by positioning a respective magnetic field sensor close to a respective injection valve within a magnetic stray field vicinity of the injection valves. A voltage is applied to the electric connection intended for the respective injection valve, and it is determined whether a magnetic stray field in the vicinity of the corresponding injection valve resulting from this voltage is detected by the assigned magnetic field sensor. The method and apparatus can be used to test whether the injection valves are correctly connected with the connection individually intended for them. The method and apparatus may be used in a bench test for an internal combustion engine.

REFERENCES:
patent: 4441360 (1984-04-01), Dooley et al.
patent: 4517833 (1985-05-01), Wesley
patent: 4541271 (1985-09-01), Flaig et al.
patent: 4687994 (1987-08-01), Fulkerson et al.
patent: 5018388 (1991-05-01), Mosebach et al.
patent: 5133323 (1992-07-01), Treusch
patent: 5241858 (1993-09-01), Wieczorek et al.

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