Browse Publications Technical Papers 2005-01-1046
2005-04-11

Implementation of a Non-Intrusive In-Vehicle Engine Torque Sensor for Benchmarking the Toyota Prius 2005-01-1046

Vehicle emissions and fuel economy testing applications rely on accurate sensors to track power flow and measure component efficiencies. A non-intrusive in-vehicle torque sensor has been implemented in a hybrid powertrain to directly measure engine torque. Previously used off-the-shelf torque sensors required additional mechanical space, and so chassis modifications were needed to accommodate the sensor, which potentially limited the vehicle to only dynamometer testing. The challenges in implementing this type of sensor in automotive environments are described in detail, as are sensor capabilities and test results.

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