发明授权
- 专利标题: Linearizing and control circuit for air flow rate meter
- 专利标题(中): 空气流量计线性化和控制电路
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申请号: US300090申请日: 1981-09-08
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公开(公告)号: US4437339A公开(公告)日: 1984-03-20
- 发明人: Ulrich Drews , Peter Rapps , Peter Werner
- 申请人: Ulrich Drews , Peter Rapps , Peter Werner
- 申请人地址: DEX Stuttgart
- 专利权人: Robert Bosch GmbH
- 当前专利权人: Robert Bosch GmbH
- 当前专利权人地址: DEX Stuttgart
- 优先权: DEX3038498 19801011
- 主分类号: F02D41/34
- IPC分类号: F02D41/34 ; F02D41/18 ; F02D41/24 ; F02D45/00 ; G01F1/00 ; G01F1/68 ; G01F1/696 ; G01M15/00
摘要:
An electrically controlled fuel metering system having an air flow rate meter device in the air intake tube and a subsequent linearizing circuit layout is proposed. The linearizing circuit layout functions in accordance with the point-slope method and is embodied as a voltage-to-current converter. A first exemplary embodiment of the linearizing circuit layout has transistors coupled with one another respectively at the base and collector sides, the emitters of which are connected with different potentials and are triggered on the base side. In a second exemplary embodiment, individual transistors or transistors which are combined into groups receive their trigger signal via separate amplifiers, while the collectors in turn are carried to a common output point and the emitters likewise have different signal levels. Because of its relatively simple design, the proposed embodiments are particularly well suited to the purposes of integration.
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