THROTTLE COMPENSATION FOR SECOND GEAR STARTS IN MANUAL TRANSMISSION VEHICLES
First Claim
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1. A method for controlling a throttle during a non-first gear start in a manual transmission vehicle, the method comprising the steps of:
- storing a base gear e-throttle map in a control module of the vehicle;
the base gear e-throttle map defining a first relationship between an accelerator pedal application percentage and a throttle opening percentage;
storing a winter mode e-throttle map in the control module of the vehicle;
the winter mode e-throttle map defining a second relationship between an accelerator pedal application percentage and a engine throttle opening percentage, the winter mode e-throttle map being different than the base gear e-throttle map;
determining a second gear start condition; and
opening the throttle of the vehicle in response to accelerator pedal position, the opening of the throttle being based upon the second relationship defined by the winter mode e-throttle map.
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Abstract
A system and method for throttle control during a second gear start in a vehicle with a manual transmission. A powertrain control module (PCM) is coupled to a throttle and is configured to control movement of the throttle according to a winter mode e-throttle map that is stored in the PCM. The PCM is configured to control the throttle based upon the winter mode e-throttle map upon detection of a second gear start condition.
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Citations
22 Claims
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1. A method for controlling a throttle during a non-first gear start in a manual transmission vehicle, the method comprising the steps of:
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storing a base gear e-throttle map in a control module of the vehicle;
the base gear e-throttle map defining a first relationship between an accelerator pedal application percentage and a throttle opening percentage;storing a winter mode e-throttle map in the control module of the vehicle;
the winter mode e-throttle map defining a second relationship between an accelerator pedal application percentage and a engine throttle opening percentage, the winter mode e-throttle map being different than the base gear e-throttle map;determining a second gear start condition; and opening the throttle of the vehicle in response to accelerator pedal position, the opening of the throttle being based upon the second relationship defined by the winter mode e-throttle map. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A throttle control system in an automotive vehicle, comprising:
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an engine coupled to a manual transmission; a throttle coupled to the engine and being moveable between a fully open position and a fully closed position; a powertrain control module (PCM) coupled to the throttle and configured to control movement of the throttle between the fully open position and the fully closed position; the PCM having stored in memory a base gear e-throttle map, the base gear e-throttle map defining a first relationship between an accelerator pedal application percentage and a throttle opening percentage, the PCM also having stored in memory a winter mode e-throttle map, the winter mode e-throttle map defining a second relationship between an accelerator pedal application percentage and a engine throttle opening percentage, the winter mode e-throttle map being different than the base gear e-throttle map; and the PCM being configured to determine existence of a second gear start condition and being further configured to control the throttle via the winter mode throttle map based upon a determination of the existence of the second gear start condition. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification