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Protecting motor vehicle turbocharger against overspeeding, by closing exhaust gas brake valve in response to excessive rotation speed or acceleration
Protecting motor vehicle turbocharger against overspeeding, by closing exhaust gas brake valve in response to excessive rotation speed or acceleration
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机译:通过响应过大的转速或加速度关闭排气制动阀,保护汽车涡轮增压器免于超速
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摘要
Turbocharger acceleration and/or turbocharger rotation speed are monitored and the exhaust gas brake valve (11) is closed in order to reduce turbocharger rotation speed. The acceleration is greater than or equal to a first threshold and the rotation speed is greater than or equal to a second threshold. Independent claims are also included for the following: (A) Overspeeding protection system for a turbocharger (2), comprising a turbocharger rotation speed measuring sensor (13) connected to a control unit (12) which calculates turbocharger acceleration; and (B) Computer for carrying out this method, which is in contact with the rotation speed sensor and exhaust brake.
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