Adaptive Cruise Control System Using CVT Gear Ratio Control
2001-01-3244
10/01/2001
- Event
- Content
- This paper describes a newly developed adaptive cruise control (ACC) system using continuously variable transmission (CVT) gear ratio control. This system provides excellent headway distance control performance at a reasonable cost. With this system, headway distance is measured with a laser radar, and the throttle position and CVT gear ratio are controlled under both acceleration and deceleration situations.The new ACC system consists of a target headway distance calculator, a headway distance controller, a vehicle velocity controller and a drive torque controller. Using a drive torque control method that was newly developed based on integrated control of engine torque and the CVT gear ratio, the following benefits are obtained.
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(1)
It provides smoother acceleration and deceleration.
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(2)
It maintains the target vehicle velocity on steep uphill and downhill grades.
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(1)
- Pages
- 8
- Citation
- Ino, J., Ishizu, T., Sudou, H., and Hino, A., "Adaptive Cruise Control System Using CVT Gear Ratio Control," SAE Technical Paper 2001-01-3244, 2001, https://doi.org/10.4271/2001-01-3244.