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Tractive Force Estimation in Real-time Using Brake Gain Adaptation  

Karl Hedrick (University of California at Berkeley)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.11, no.3, 2003 , pp. 214-219 More about this Journal
Abstract
This paper includes real-time tractive force estimation method using standard vehicle sensors such as wheel speed, brake pressure, throttle position, engine speed, and transmission carrier speed sensor. Engine map, torque converter lookup table, shaft torque observer, and brake gain adaptation method are used to estimate the tractive force. To verify this estimator, measurement which uses strain-based brake torque sensor and estimation results are presented. All results was performed using a real vehicle in a real-time.
Keywords
Least square method; Tractive force; Real-time; Friction coefficient; Active Safety;
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