Method and apparatus for estimating applied wheel torque in a mo

Details Method and apparatus for estimating applied wheel torque in a mo Method and apparatus for estimating applied wheel torque in a mo

1997-09-08

2000-11-28

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

701 87, 701 54, 477 34, 477107, 477110, 477115, 477120, 180197, B60K 4100

Patent

active

061547026

ABSTRACT:
A vehicle traction control system is controlled in part by a signal value indicative of estimated wheel torque. The estimated wheel torque value is produced within the vehicle's electronic engine control (EEC) module by summing a first value which indicated the estimated torque attributable to engine combustion and a second value which is proportional to engine acceleration/deceleration which indicates the amount of torque attributable to the inertial movement of engine and drive train masses. The second value is modified by a third value based on the speed ratio across the transmission. Before summing the two signal components, the signal which indicates combustion torque is preferably delayed with respect to the signal indicating inertial torque by a delay interval whose duration varies with engine speed to take into account the delay between intake fuel rate changes and combustion forces as well as delays attributable to the timing of the calculations themselves.

REFERENCES:
patent: 4108136 (1978-08-01), Hideg et al.
patent: 4259932 (1981-04-01), Hideg et al.
patent: 4346625 (1982-08-01), Latsch et al.
patent: 4580465 (1986-04-01), Omitsu
patent: 4841447 (1989-06-01), Hayashi et al.
patent: 5047937 (1991-09-01), Vahabzadeh et al.
patent: 5184577 (1993-02-01), Kato et al.
patent: 5483446 (1996-01-01), Momose et al.
patent: 5490064 (1996-02-01), Minowa et al.
patent: 5628378 (1997-05-01), Saito et al.
patent: 5751579 (1998-05-01), Hrovat et al.
High Performance Automotive Engine Control in Engine Tester; Hori;Suzuki/Nomura/Terashima, no date.
Bond Graph Modeling of Automotive Power Trains; Hrovat; Tobler, unknown date.

Affiliated with

Also associated with

Rating

Method and apparatus for estimating applied wheel torque in a mo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for estimating applied wheel torque in a mo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for estimating applied wheel torque in a mo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1734902