Magnetostrictive linear displacement transducer for a vehicle steering system
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0340387
(1999-06-28)
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발명자
/ 주소 |
- David S. Nyce
- Norbert Bendicks DE
- Frank Blasing DE
- Ralf Bobel DE
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
4 인용 특허 :
2 |
초록
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A steering angle sensing system 1 for measuring the angle position of a vehicle steering wheel is disclosed which uses at least one position magnet 7, 8 coupled to the rotary movement of the steering wheel as a transducer, and a magnetostrictive transducer 4 as a measuring device. Magnetostrictive t
A steering angle sensing system 1 for measuring the angle position of a vehicle steering wheel is disclosed which uses at least one position magnet 7, 8 coupled to the rotary movement of the steering wheel as a transducer, and a magnetostrictive transducer 4 as a measuring device. Magnetostrictive transducer 4 includes an elongated, magnetostrictive waveguide 9 extending over a defined arc section, with mode converter 10 for detecting magnetostrictively generated voltage pulses at one end. The waveguide 9 is stationary related to the rotary movement of at least one position magnet; 7, 8, so that, when turning the steering wheel, the magnet field of one position magnet 7, 8 is applied to waveguide 9 in different positions dependent of the position of the steering wheel.
대표청구항
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1. A steering angle sensing system for measuring the angle position of a vehicle steering wheel, comprising a position magnet (7, 8; 13; 25, 26, 27) coupled to the steering wheel rotary movement and a measuring device (4, 9; 12; 28) stationary referred to the rotary movement of position magnet (7, 8
1. A steering angle sensing system for measuring the angle position of a vehicle steering wheel, comprising a position magnet (7, 8; 13; 25, 26, 27) coupled to the steering wheel rotary movement and a measuring device (4, 9; 12; 28) stationary referred to the rotary movement of position magnet (7, 8; 13; 25, 26, 27) which is intended for measuring transducer signals, whereby the measuring device (4, 9; 12; 28) and the position magnet (7, 8; 13; 25, 26, 27) are arranged with respect to each other so that the position magnet signals detected by the measuring device (4, 9; 12; 28) indicate the relative position between steering wheel and measuring device (4, 9; 12; 28), characterized by at least one position magnet (7, 8; 13; 25, 26, 27) and magnetostrictive waveguide (9; 12; 28) being coupled as a transducer to the steering wheel rotary movement by said magnetostrictive waveguide (9; 12; 28) extending over a defined arc path traversed by said position magnet (7, 8; 13; 25, 26, 27); and a mode converter (10) fitted at one end of the magnetostrictive waveguide (9; 12; 28) to detect the coupling location.
이 특허에 인용된 특허 (2)
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Ueda Toshitsugu (Musashino JPX) Ra Seiki (Musashino JPX) Noguchi Masanori (Musashino JPX), Displaced position detecting device.
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Chamuel Jacques R. (Allston MA), Position sensing readout.
이 특허를 인용한 특허 (4)
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Raphalovitz, Alexander; Sprecher, Jr., Arnold F.; Nyce, David S., Folded magnetostrictive wave guide.
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Viola, Uwe; Minin, Aleksey; Kraehe, Frank, Magnetostrictive displacement transducer with suppression of switching power supply noise.
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Nyce, David S., Magnetostrictive linear displacement transducer for a vehicle steering system.
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Miller, John Michael, Position sensor.
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