System for generating a signal to superimpose information
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G08C-019/12
출원번호
US-0633614
(2000-08-07)
우선권정보
DE-0037155 (1999-08-06)
발명자
/ 주소
Schneider, Thomas
출원인 / 주소
Robert Bosch GmbH
대리인 / 주소
Kenyon & Kenyon
인용정보
피인용 횟수 :
29인용 특허 :
10
초록▼
A system for generating a signal which, in addition to first information representing the rotational speed of a rotating part, contains at least second information. The signal changes over time between a first and a second current level and/or voltage level (high/low). The first information is repre
A system for generating a signal which, in addition to first information representing the rotational speed of a rotating part, contains at least second information. The signal changes over time between a first and a second current level and/or voltage level (high/low). The first information is represented by the time interval between a substantially identical change either between the first to the second level (high/low edge) or a substantially identical change between the second to the first level (low/high edge). On the other hand, the second information is represented by the length of time either of the first or of the second level. No further current levels or voltage levels are used to transmit the additional information, and that the additional information can be evaluated relatively simply. High data integrity can be attained by pulses which are as long as possible.
대표청구항▼
1. A system, comprising: an arrangement for generating a signal containing first information representing a rotational speed of a rotating part and containing at least second information, the signal changing over time between a first level and a second level of at least one of a current and a vol
1. A system, comprising: an arrangement for generating a signal containing first information representing a rotational speed of a rotating part and containing at least second information, the signal changing over time between a first level and a second level of at least one of a current and a voltage, wherein: the first information is represented by a time interval between one of a substantially identical change from the first level to the second level and a substantially identical change from the second level to the first level, and the at least second information is represented by a length of time of one of the first level and the second level. 2. The system according to claim 1, wherein: the system is used in a motor vehicle, the first information represents at least one of a speed of a vehicle wheel, a speed of a vehicle engine designed as at least one of a gasoline engine, a diesel engine, and an electromotor, and a speed of a shaft functionally coupled to a vehicle transmission, the at least one second information includes at least one information component representing at least one of: a distance between the rotating part and a sensor element detecting the rotational speed, a brake-lining wear at at least one vehicle wheel brake, a direction of rotation of the rotating part, and a fitting position of the sensor element detecting the rotational speed. 3. The system according to claim 2, wherein: each of the at least one information component to be transmitted by the signal corresponds to different priorities, such that, in response to a presence of a component of the at least one information component having the highest priority, each other component of the at least one information component is not transmitted. 4. The system according to claim 1, wherein: the signal is generated in such a way that, prior in time to a change from one of a high edge to a low edge and the low edge to the high edge, at least one of a current level and a voltage level which the signal has prior to the change is set for at least one specifiable time duration. 5. The system according to claim 4, wherein: a trigger signal is generated and, in reaction to a generation of the trigger signal, the signal is set to one of the first level and the second level of at least one of the current and the voltage, and the trigger signal is generated as a function of the rotational speed of the rotating part. 6. The system according to claim 1, wherein: when the rotating part is stationary, the signal is generated in such a way that the signal has one of the first level and the second level of at least one of the current and the voltage for a specifiably fixed time duration.
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이 특허에 인용된 특허 (10)
Finger Eugene P. (Brewster NY), Data encodement and reading method and apparatus.
Olaf Zinke DE; Wolfgang Fey DE; Heinz Loreck DE, Method of transmitting data within pulse intervals of a rotational speed signal, and circuit arrangement for implementing the method.
Vig, Ravi; Scheller, P. Karl; David, Paul, Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation as a ferromagnetic object.
Vig, Ravi; Scheller, P. Karl; David, Paul A., Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object.
Vig, Ravi; Scheller, P. Karl; David, Paul A., Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic object.
Heizmann,Joachim; Kloepzig,Markus; Wysk,Hans Joachim, Device for generation of a signal dependent on rotational speed for an electric motor, in particular for an electronically-commutated DC motor.
Drouin, Mathew; Fernandez, Devon; Towne, Jay M.; Milesi, Alejandro G., Magnetic field sensor and electronic circuit that pass amplifier current through a magnetoresistance element.
Vig, Ravi; Scheller, P. Karl; Fernandez, Devon; Graham, Christine; David, Paul, Magnetic field sensors and related techniques that can provide self-test information in a formatted output signal.
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