USE OF ON-VEHICLE ACCELEROMETER TO ESTIMATE VEHICLE GRADE AND MASS WHILE VEHICLE IS IN MOTION
First Claim
1. A system comprising:
- a grade estimation module that receives an accelerometer value and generates a grade estimate based on the accelerometer value, wherein the accelerometer value corresponds to acceleration of a vehicle and the grade estimate corresponds to a grade of the vehicle;
a mass estimation module that receives the accelerometer value and generates a mass estimate based on the accelerometer value, wherein the mass estimate corresponds to a mass of the vehicle; and
a shift control module that at least one of selects and adjusts one of a plurality of shift schedules based on at least one of the grade estimate and the mass estimate and controls a transmission of the vehicle based on the one of the plurality of shift schedules.
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Accused Products
Abstract
A system includes a grade estimation module that receives an accelerometer value and generates a grade estimate based on the accelerometer value, wherein the accelerometer value corresponds to acceleration of a vehicle and the grade estimate corresponds to a grade of the vehicle. A mass estimation module receives the accelerometer value and generates a mass estimate based on the accelerometer value, wherein the mass estimate corresponds to a mass of the vehicle. A shift control module at least one of selects and adjusts one of a plurality of shift schedules based on at least one of the grade estimate and the mass estimate and controls a transmission of the vehicle based on the one of the plurality of shift schedules.
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Citations
20 Claims
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1. A system comprising:
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a grade estimation module that receives an accelerometer value and generates a grade estimate based on the accelerometer value, wherein the accelerometer value corresponds to acceleration of a vehicle and the grade estimate corresponds to a grade of the vehicle; a mass estimation module that receives the accelerometer value and generates a mass estimate based on the accelerometer value, wherein the mass estimate corresponds to a mass of the vehicle; and a shift control module that at least one of selects and adjusts one of a plurality of shift schedules based on at least one of the grade estimate and the mass estimate and controls a transmission of the vehicle based on the one of the plurality of shift schedules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method comprising:
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receiving an accelerometer value; generating a grade estimate based on the accelerometer value, wherein the accelerometer value corresponds to acceleration of a vehicle and the grade estimate corresponds to a grade of the vehicle; generating a mass estimate based on the accelerometer value, wherein the mass estimate corresponds to a mass of the vehicle; at least one of selecting and adjusting one of a plurality of shift schedules based on at least one of the grade estimate and the mass estimate; and controlling a transmission of the vehicle based on the one of the plurality of shift schedules. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification