摘要:
A motor vehicle drive system controller is adapted to automatic drive control, the engine and the transmission being among the objects of control. The power output of the motor is controlled so as to maintain either a consistent drivable mode or a consistent undrivable mode as the automatic transmission shifts gears while the vehicle is running under automatic drive control. The consistent drivable mode refers to a state where the output torque of the motor is greater than the sum of the average running resistance and the variation in the running resistance and the consistent undrivable mode refers to a state where the output torque of the motor is smaller than the difference of the average running resistance and the variation in the running resistance. The automatic drive control function is prohibited when the controller detects abnormality in the transmission.
摘要:
A running stability controller is activated upon the instability of a vehicle and controls at least one of an output of an engine, a braking force applied to the vehicle and a gear ratio of an automatic transmission. A manual shifting controller which shifts the automatic transmission according to an operation of a manual shifter is provided. A running stability control detector detects the activation of the running stability controller. A manual shifting control inhibitor operates upon detection of the activation of the running stability controller, and inhibits an operation of the manual shifting controller while the running stability controller is activated.
摘要:
A motor vehicle drive system controller is adapted to automatic drive control, the engine and the transmission being among the objects of control. The power output of the motor is controlled so as to maintain either a consistent drivable mode or a consistent undrivable mode as the automatic transmission shifts gears while the vehicle is running under automatic drive control. The consistent drivable mode refers to a state where the output torque of the motor is greater than the sum of the average running resistance and the variation in the running resistance and the consistent undrivable mode refers to a state where the output torque of the motor is smaller than the difference of the average running resistance and the variation in the running resistance. The automatic drive control function is prohibited when the controller detects abnormality in the transmission.
摘要:
Apparatus for estimating a drive mode of a motor vehicle desired by an operator of the motor vehicle, including a variable calculating device and a drive mode estimating device, wherein the variable calculating device calculates at least one of drive mode indicating variables such as a drive force of the vehicle desired by the operator upon starting of the vehicle, a maximum rate of increase of the drive force, a maximum deceleration of the vehicle upon operation of a manually operated member for brake application to the vehicle, a coasting run time of the vehicle and a steady run time of the vehicle, and wherein the drive mode estimating device includes a neural network which receives the drive mode indicating variable or variables calculated by the variable calculating device, so that the drive mode estimating device estimates the drive mode of the motor vehicle desired by the operator on the basis of an output of the neural network. The output of the neural network may be used to control a desired controllable system of the vehicle such as an automatic transmission and a vehicle drive force control device.
摘要:
A running stability controller is activated upon the instability of a vehicle and controls at least one of an output of an engine, a braking force applied to the vehicle and a gear ratio of an automatic transmission. A manual shifting controller which shifts the automatic transmission according to an operation of a manual shifter is provided. A running stability control detector detects the activation of the running stability controller. A manual shifting control inhibitor operates upon detection of the activation of the running stability controller, and inhibits an operation of the manual shifting controller while the running stability controller is activated.
摘要:
A control system for an automatic transmission including a range switching mechanism for switching a shift range by electric means. It is detected that the switching of the shift range has been instructed by the range switching mechanism. It is decided that a gear change will occur according to the instructed switching of the shift range. It is decided that the decided gear change can be executed. The range switching of the shift range is inhibited, when it is not decided that the gear change is allowed.
摘要:
A lock-up clutch slip control system for controlling a lock-up clutch, which is arranged in parallel with a hydraulic power transmission for connecting a prime mover and a speed change unit, selectively into a slip state. It is decided whether or not a slip control of changing the lock-up clutch from a complete apply state to a slip state is to be executed according to the operation of lowering the output of the prime mover. The output of said prime mover is changed to suppress the output fluctuation of the prime mover when it is decided that the slip control of the lock-up clutch is to be executed.
摘要:
Automotive vehicle control apparatus including a running stability control device for reducing engine output and/or applying brake to vehicle wheels for improving vehicle running stability, a shift control device for shifting an automatic transmission by engagement of at least one hydraulically operated frictional coupling device, depending upon a detected vehicle running condition as compared with a predetermined shift boundary pattern, a running stability control detecting device for detecting an operation of said running stability control device, and one of (a) a coupling pressure control device for controlling a hydraulic pressure of the frictional coupling device to be engaged to shift the automatic transmission, such that a rate of rise of the hydraulic pressure is lower when the operation of running stability control device is detected by the running stability control detecting device, than when the operation of the running stability control device is not detected, and (b) a shift point changing device for changing a shift point determined by the shift boundary pattern, when the operation of the running stability control device is detected.
摘要:
Automotive vehicle control apparatus including a running stability control device for reducing engine output and/or applying brake to vehicle wheels for improving vehicle running stability, a shift control device for shifting an automatic transmission by engagement of at least one hydraulically operated frictional coupling device, depending upon a detected vehicle running condition as compared with a predetermined shift boundary pattern, a running stability control detecting device for detecting an operation of said running stability control device, and one of (a) a coupling pressure control device for controlling a hydraulic pressure of the frictional coupling device to be engaged to shift the automatic transmission, such that a rate of rise of the hydraulic pressure is lower when the operation of running stability control device is detected by the running stability control detecting device, than when the operation of the running stability control device is not detected, and (b) a shift point changing device for changing a shift point determined by the shift boundary pattern, when the operation of the running stability control device is detected.
摘要:
A primary regulator valve has a cutback port which regulates a line pressure to increase, at the first speed of D range, a throttle pressure is applied to the cutback port through a cutback valve. The primary regulator valve sets the line pressure from a line pressure port higher. The cutback valve has a spool which is compressed in one direction. A first control chamber which is connected to a hydraulic servo (for example, a second brake hydraulic servo) which hydraulic pressure is applied at more than the second speed is formed against the pressing direction, a second control chamber which is connected to a hydraulic servo (for example, a second-coast brake hydraulic servo) to limit a coasting condition of the second speed is so formed as to follow the above pressing direction. At the second speed of second range, the cutback valve, as the first speed of D range, the throttle pressure is applied to the cutback port. Furthermore, the primary regulator valve has a control chamber which regulates the line pressure to decrease. A pressure control valve (for example, a linear solenoid valve to control a lock-up clutch) is connected to the control chamber to reduce the line pressure when a manual valve is selected from N range to D or R range.