Abstract: A control device for continuously variable transmission includes an operating state detection means for detecting an operating state of a vehicle including a vehicle speed and an accelerator pedal opening, a control means for controlling a speed ratio of a continuously variable transmission based on the operating state, an acceleration request determination means for determining the presence or absence of an acceleration request of a driver based on the accelerator pedal opening, and a speed ratio setting means for setting a speed reduction ratio controlled by the control means to be smaller with an increase in an acceleration start vehicle speed if the accelerator pedal opening is equal during acceleration. The control means updates the acceleration start vehicle speed to a vehicle speed at the time of a determination after determining that the accelerator pedal opening has been increased during acceleration.

Abstract: A vehicle operation support apparatus includes an indicator section for indicating an actual value of a parameter and a target value of the parameter for an operator to manipulate the parameter with reference to the target value, wherein the parameter is manipulated by the operator for changing an engine output of a vehicle. In the vehicle operation support apparatus, a change amount of an indication in the indicator section with respect to a unit change amount of the actual value of the parameter is relatively small in a region close to the target value.

Abstract: A control device for continuously variable transmission includes an operating state detection means for detecting an operating state of a vehicle including a vehicle speed and an accelerator pedal opening, a control means for controlling a speed ratio of a continuously variable transmission based on the operating state, an acceleration request determination means for determining the presence or absence of an acceleration request of a driver based on the accelerator pedal opening, and a speed ratio setting means for setting a speed reduction ratio controlled by the control means to be smaller with an increase in an acceleration start vehicle speed if the accelerator pedal opening is equal during acceleration. The control means updates the acceleration start vehicle speed to a vehicle speed at the time of a determination after determining that the accelerator pedal opening has been increased during acceleration.

Abstract: A vehicle operation support apparatus includes an indicator section for indicating an actual value of a parameter and a target value of the parameter for an operator to manipulate the parameter with reference to the target value, wherein the parameter is manipulated by the operator for changing an engine output of a vehicle. In the vehicle operation support apparatus, a change amount of an indication in the indicator section with respect to a unit change amount of the actual value of the parameter is relatively small in a region close to the target value.

Abstract: An automatic transmission shift control apparatus is basically provided with deceleration operating condition detecting section, a first shift phase control section and a second shift phase control section. The deceleration operating condition detecting section detects a vehicle coasting condition. The first shift phase control section control a gear ratio of an automatic transmission installed in a vehicle using a first shift phase control after detecting the vehicle coasting condition has started such that a deceleration rate of the vehicle enters a deceleration region. The second shift phase control section control the gear ratio of the automatic transmission after the first shift phase control ends such that the deceleration rate of the vehicle enters a constant speed region.

Abstract: A curving tendency detection device is provided to detecting a curving tendency (curving frequency and amount of curvature) in a vehicle roadway or a vehicle running state (behavior). Basically, the curving tendency detection device has a lateral acceleration differential value calculation section and a curving tendency estimation section. The lateral acceleration differential value calculation section calculates vehicle lateral acceleration differential values of a vehicle lateral acceleration acting on a vehicle as the vehicle lateral acceleration varies over time. The curving tendency estimation section estimates the curving tendency based on the vehicle lateral acceleration differential value calculated by the lateral acceleration differential value calculation section. Thus, the curving can be reliably detected by effectively avoiding a false curving tendency in cases in which the left and right wheels have different effective diameters, or the vehicle is driving straight along a laterally tilted road.

Abstract: A speed change control device for an automatic transmission according to this invention determines whether or not a request to downshift a gear position of the transmission exists during traveling in a manual speed change mode (S1, S2), and calculates an input shaft rotation speed of the transmission following a downshift based on the downshift request (S4). When it is determined that the calculated rotation speed is higher than a rotation speed limit value (S5), the speed change control device performs a downshift to a gear position at which the input shaft rotation speed of the transmission is lower than the calculated rotation speed (S6, S8).

Abstract: An automatic transmission shift control apparatus is basically provided with deceleration operating condition detecting section, a first shift phase control section and a second shift phase control section. The deceleration operating condition detecting section detects a vehicle coasting condition. The first shift phase control section control a gear ratio of an automatic transmission installed in a vehicle using a first shift phase control after detecting the vehicle coasting condition has started such that a deceleration rate of the vehicle enters a deceleration region. The second shift phase control section control the gear ratio of the automatic transmission after the first shift phase control ends such that the deceleration rate of the vehicle enters a constant speed region.

Abstract: A speed change control device for an automatic transmission according to this invention determines whether or not a request to downshift a gear position of the transmission exists during traveling in a manual speed change mode (S1, S2), and calculates an input shaft rotation speed of the transmission following a downshift based on the downshift request (S4). When it is determined that the calculated rotation speed is higher than a rotation speed limit value (S5), the speed change control device performs a downshift to a gear position at which the input shaft rotation speed of the transmission is lower than the calculated rotation speed (S6, S8).

Abstract: A curving tendency detection device is provided to detecting a curving tendency (curving frequency and amount of curvature) in a vehicle roadway or a vehicle running state (behavior). Basically, the curving tendency detection device has a lateral acceleration differential value calculation section and a curving tendency estimation section. The lateral acceleration differential value calculation section calculates vehicle lateral acceleration differential values of a vehicle lateral acceleration acting on a vehicle as the vehicle lateral acceleration varies over time. The curving tendency estimation section estimates the curving tendency based on the vehicle lateral acceleration differential value calculated by the lateral acceleration differential value calculation section. Thus, the curving can be reliably detected by effectively avoiding a false curving tendency in cases in which the left and right wheels have different effective diameters, or the vehicle is driving straight along a laterally tilted road.

Abstract: A shift control apparatus for a continuously-variable transmission includes a controller for controlling a transmission ratio in a normal mode in accordance with a sensed vehicle speed and a sensed accelerator operation condition. The controller determines a second-mode downshift characteristic and a second-mode upshift characteristic in accordance with a driver's acceleration demand; and controls the transmission ratio in a kickdown shift control mode in response to a driver's acceleration request by performing a downshift operation to a target downshift transmission ratio determined according to the second-mode downshift characteristic and an upshift operation according to the second mode upshift characteristic.

Abstract: A shift control apparatus for a continuously-variable transmission includes a controller for controlling a transmission ratio in a normal mode in accordance with a sensed vehicle speed and a sensed accelerator operation condition. The controller determines a second-mode downshift characteristic and a second-mode upshift characteristic in accordance with a driver's acceleration demand; and controls the transmission ratio in a kickdown shift control mode in response to a driver's acceleration request by performing a downshift operation to a target downshift transmission ratio determined according to the second-mode downshift characteristic and an upshift operation according to the second mode upshift characteristic.

Abstract: A control system for a continuously variable automatic transmission for an automotive vehicle, includes a throttle opening sensor that detects a throttle opening, and a controller that executes a change-speed control in a normal mode in which a desired transmission input speed is determined based on operating conditions of the vehicle and a desired transmission ratio is determined based on the desired transmission input speed when the throttle opening is less than a first value, and that executes the change-speed control in a linear mode in which the desired transmission ratio is fixed to a second value when the throttle opening is greater than or equal to the first value. The second value is set based on the desired transmission ratio used in the normal mode prior to switching to the linear mode.

Abstract: A control system for a continuously variable automatic transmission for an automotive vehicle, includes a throttle opening sensor that detects a throttle opening, and a controller that executes a change-speed control in a normal mode in which a desired transmission input speed is determined based on operating conditions of the vehicle and a desired transmission ratio is determined based on the desired transmission input speed when the throttle opening is less than a first value, and that executes the change-speed control in a linear mode in which the desired transmission ratio is fixed to a second value when the throttle opening is greater than or equal to the first value. The second value is set based on the desired transmission ratio used in the normal mode prior to switching to the linear mode.