Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Patent
1999-08-02
2000-12-26
Dolinar, Andrew M.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
123350, 123396, F02D 1110, F02D 4110
Patent
active
061673439
ABSTRACT:
An improved method of governing vehicle acceleration in which desired throttle area is initialized to an open-loop, vehicle speed dependent, value at the onset of vehicle acceleration governing, and is thereafter updated based on a combination of open-loop, and proportional and integral closed-loop terms. The open-loop term is calibrated to produce a throttle area limit for controlling the vehicle acceleration on flat terrain with nominal loading at sea level, while the proportional and integral terms compensate for terrain inclination, loading and altitude, yielding an optimal balance of smoothness and response time. The open-loop term may be empirically determined as a function of both vehicle speed and barometric pressure, and the vehicle acceleration is computed using a least squares approximation of acceleration based on successively measured values of vehicle speed.
REFERENCES:
patent: 4707792 (1987-11-01), Naitou
patent: 5297064 (1994-03-01), Bauerle
patent: 6021370 (2000-02-01), Bellinger et al.
Dolinar Andrew M.
General Motors Corporation
Simon Anthony Luke
LandOfFree
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