Control device for vehicle

摘要

A control device of a vehicle has a hill ascent angle update determiner, a slope estimator, a deceleration determiner, and a hill ascent angle estimator. The deceleration determiner determines that a vehicle is in a deceleration state when the throttle opening is equal to or lower than a threshold. The hill ascent angle update determiner prohibits update processing of an estimated hill ascent angle in the increase direction by the hill ascent angle estimator if the slope estimator estimates that a road surface has an upward slope and the deceleration determiner determines that the vehicle is in the deceleration state.

主权项

1. A vehicle comprising:
a drive source configured to transmit power to a drive wheel via an automatic transmission; a vehicle speed detector configured to detect vehicle speed of the vehicle; a rotation speed detector configured to detect rotation speed of the drive source; an acceleration operation amount detector configured to detect an acceleration operation amount of the vehicle; a slope estimator configured to estimate a slope of a road surface on which the vehicle travels based upon the vehicle speed, the rotation speed, the acceleration operation amount, and a transmission gear ratio of the automatic transmission; a hill ascent angle estimator configured to estimate a hill ascent angle based upon the slope; a brake detector configured to detect whether operation of a brake of the vehicle is present or absent; and a shift controller configured to control the automatic transmission based upon the hill ascent angle estimated by the hill ascent angle estimator and operation of the brake detected by the brake detector; a control device, comprising
a deceleration determiner configured to determine that the vehicle is in a deceleration state when the acceleration operation amount is equal to or smaller than a threshold, anda hill ascent angle update determiner configured to prohibit update processing of the hill ascent angle in an increase direction by the hill ascent angle estimator if the slope estimator estimates that the road surface has an upward slope and the deceleration determiner determines that the vehicle is in the deceleration state.