Pressure or temperature sensor control of a variable position exhaust throttle valve
AssigneeSiemens VDO Automotive Canada Inc.
InventorsBen Williams, Robert D. Jefford
Life of this patent
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Abstract
An exhaust throttling valve (ETV) system (10) is provided for a vehicle. The system includes an ETV (12) having a housing (14), a valve member (16) movable with respect to the housing between at least one state and another state within an exhaust gas flow path, and an actuator (18) for moving the valve member. Sensor structure (20) in the form of a pressure sensor or a temperature sensor is mounted upstream or downstream of the valve member in the exhaust gas flow path. The sensor structure is constructed and arranged to determine an operating condition of the valve member such as position of the valve member and/or whether the valve member has moved from one state to the other state.
Claims20
An exhaust throttling valve (ETV) system for a vehicle comprising:
- an ETV having a housing, a valve member movable with respect to the housing between at least one state and another state within an exhaust gas flow path, and an actuator for moving the valve member, and
- sensor structure in the form of at least one of a pressure sensor or a temperature sensor mounted at least one of upstream or downstream of the valve member in the exhaust gas flow path, the sensor structure being constructed and arranged to determine an operating condition of the valve member.
An exhaust throttling valve (ETV) system for a vehicle comprising:
- an ETV having a housing, a valve member movable with respect to the housing between at least one state and another state within an exhaust gas flow path, and an actuator for moving the valve member, and
- means, mounted at least one of upstream or downstream of the valve member in the exhaust gas flow path, for determining an operating condition of the valve member.
A method of determining an operating condition of an exhaust throttling valve (ETV) for a vehicle, the method comprising:
- providing an ETV having a housing, a valve member movable with respect to the housing between at least one state and another state within an exhaust gas flow path, and an actuator for moving the valve member, and
- sensing one of pressure or temperature within the exhaust gas flow path at one of upstream or downstream of the valve member, and
- based on the sensing, determining an operating condition of the valve member.
Dependencies are inferred from the claim text.