Electricity: motive power systems – Plural diverse motor controls – Motor-reversing
Patent
1990-03-30
1992-10-20
Ro, Bentsu
Electricity: motive power systems
Plural diverse motor controls
Motor-reversing
318286, 318467, G05D 312
Patent
active
051573130
ABSTRACT:
The invention is concerned with systems for deploying and parking retractable members such as headlamps or windshield wipers of automotive vehicles. In order to reduce the reaction time when a command is given that countermands a command which is in course of execution, elements are provided for detecting the current state of the system using end stop detectors. The operating program for the system, which controls the parking and deployment functions, is directed towards a parking step or a deployment step, in such a way that the motor currently in operation is immediately reversed (optionally after being braked), when a command is received which reverses the command currently being executed, whether or not the moveable element controlled by the motor has reached the end of its travel.
REFERENCES:
patent: 3121902 (1964-02-01), Massoll
patent: 4468596 (1984-08-01), Kinzl et al.
patent: 4583152 (1986-04-01), Kawai et al.
patent: 4639839 (1987-01-01), Miyazawa
patent: 4700982 (1987-10-01), Kuraoka et al.
patent: 4773183 (1988-09-01), Okushima et al.
patent: 4852205 (1989-08-01), Tanaka et al.
patent: 4870333 (1989-09-01), Itoh et al.
patent: 4983896 (1991-01-01), Sugiyama et al.
Ro Bentsu
Valeo Systems d'Essuyage
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