Control circuit and method for an electric motor, in particular for driving a windshield wiper
US9048763B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2011 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Oct 8, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S1/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a control circuit (3) for an electric motor, in particular for driving a windshield wiper, including a control means (16) comprising an output for controlling the electric motor, the control means being capable of varying the angle of the motor between a given minimum value and maximum value. In particular, the control means (16) comprises an input for receiving a speed set point and is capable of controlling the angular speed of the motor according to the speed set point, the control circuit likewise including a set point means (14) comprising an input for receiving values of the angle of the motor and an output for providing a speed set point to the control means, the set point means (14) being capable of determining the speed set point from a continuous function of the motor angle. The invention likewise relates to a driving mechanism (2) for producing an alternating rotary motion comprising a circuit (3) such as described previously and an electric drive motor (4), as well as to a windshield wiper device (I) including at least one driving mechanism (2) such as described previously and an windshield wiper arm (5) driven by the driving mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.