Controller for driving system of vehicle

A control device for a drive line of a vehicle in which the drive line from internal combustion engine, which is configured to be selectively interrupted in its fuel feed at a deceleration time, to drive wheels includes wheel control means for controlling a speed of said wheels, and a connection mechanism for increasing/decreasing a torque transmission capacity between said power source and the drive wheels, comprising:

• trouble detecting means for detecting that said wheel control means is in a situation unable to control the speed of said wheels normally due to a failure of the wheel control means;
• braking detecting means for detecting that a braking operation to brake a rotation of said wheels is executed;
• torque interruption control means for reducing the torque transmission capacity by said connection mechanism, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed;
• condition satisfaction deciding means for deciding the satisfaction of the condition if a time period for a speed of said internal combustion engine to reach a minimum value for enabling an autonomous rotation of the internal combustion engine is shortened by said braking;
• and
• fuel feed returning means for executing fuel feed by releasing an interruption of the fuel feed to said internal combustion engine, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure, when it is detected by said braking means that the braking operation to brake the rotation of said wheels is executed and when the satisfaction of said predetermined condition is decided by said condition satisfaction deciding means.

A control device for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes wheel control means for controlling a speed of said wheels, and a continuously variable transmission with a lockup clutch, comprising:

• trouble detecting means for detecting that said wheel control means is in a situation unable to control the speed of said wheels normally due to a failure of the wheel control means;
• braking detecting means for detecting that a braking operation to brake the rotation of said wheels is executed;
• and
• release control means for controlling said lockup clutch to a release side to lower a torque transmission capacity of said lockup clutch, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed.

A control device for the drive line of a vehicle in which the drive line from a power source to drive wheels includes wheel control means for controlling a speed of said wheels, and a continuously variable transmission with a lockup clutch, comprising:

• trouble detecting means for detecting that said wheel control means is in a situation unable to control the speed of said wheels normally due to a failure of the wheel control means;
• braking detecting means for detecting that a braking operation to brake the rotation of said wheels is executed;
• release control means for controlling said lockup clutch to a release side to lower a torque transmission capacity of said lockup clutch, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed;
• condition satisfaction deciding means for deciding the satisfaction of the condition if a time period for a speed of said internal combustion engine to reach a minimum value for enabling an autonomous rotation of the internal combustion engine is shortened by said braking;
• and
• continuously variable transmission control changing means for changing control contents of said continuously variable transmission, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure, when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed, and when the satisfaction of said predetermined condition is decided by said condition satisfaction deciding means.

A control device for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes wheel control means for controlling a speed of said wheels, and a connection mechanism for increasing/decreasing a torque transmission capacity between said power source and the drive wheels, comprising:

• trouble detecting means for detecting that said wheel control means is in a situation unable to control the speed of said wheels normally;
• braking detecting means for detecting that a braking operation to brake a rotation of said wheels is executed;
• torque interruption control means for reducing the torque transmission capacity by said connection mechanism, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally and when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed;
• and
• output raising means for raising an output of said power source, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally and when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed.

A control device for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes wheel control means for controlling a speed of said wheels, and a continuously variable transmission with a lockup clutch, comprising:

• trouble detecting means for detecting that said wheel control means is in a situation unable to control the speed of said wheels normally due to a failure of the wheel control means;
• braking detecting means for detecting that a braking operation to brake a rotation of said wheels is executed;
• release control means for controlling said lockup clutch to a release side to lower a torque transmission capacity of said lockup clutch, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed;
• and
• continuously variable transmission control changing means for changing control contents of said continuously variable transmission, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed.

A control device for a drive line of a vehicle in which the drive line from a power source to drive wheels includes wheel control means for controlling a speed of said wheels, and a continuously variable transmission with a lockup clutch, comprising:

• trouble detecting means for detecting that said wheel control means is in a situation unable to control the speed of said wheels normally due to a failure of the wheel control means;
• braking detecting means for detecting that a braking operation to brake the rotation of said wheels is executed;
• release control means for controlling said lockup clutch to a release side to lower a torque transmission capacity of said lockup clutch when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detecting means that the braking operation to brake the rotation of said wheels is executed;
• and
• continuously variable transmission control changing means for changing control contents of said continuously variable transmission, when it is detected by said trouble detecting means that said wheel control means cannot control the speed of said wheels normally due to the failure and when it is detected by said raking detecting means that the braking operation to brake the rotation of said wheels is executed;
• and
• condition satisfaction deciding means for deciding the satisfaction of the condition if a time period for a speed of said internal combustion engine to reach a minimum value for enabling an autonomous rotation of the internal combustion engine is shortened by said braking.

A control device for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes wheel controller for controlling a speed of said wheels, and a connection mechanism for increasing/decreasing a torque transmission capacity between said power source and the drive wheels, comprising:

• a trouble detector for detecting that said wheel controller is in a situation unable to control the speed of said wheels normally due to a failure of the wheel controller;
• a braking detector for detecting that a braking operation to brake a rotation of said wheels is executed;
• and
• a torque interruption controller for reducing the torque transmission capacity by said connection mechanism, when it is detected by said trouble detector that said wheel controller cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detector that the braking operation to brake the rotation of said wheels is executed.

A control device for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes a wheel controller for controlling a speed of said wheels, and a continuously variable transmission with a lockup clutch, comprising:

• a trouble detector for detecting that said wheel controller is in a situation unable to control the speed of said wheels normally due to a failure of the wheel controller;
• a braking detector for detecting that a braking operation to brake the rotation of said wheels is executed;
• and
• a release controller for controlling said lockup clutch to a release side to lower a torque transmission capacity of said lockup clutch, when it is detected by said trouble detector that said wheel controller cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detector that the braking operation to brake the rotation of said wheels is executed.

A control device for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes wheel controller for controlling a speed of said wheels, and a connection mechanism for increasing/decreasing a torque transmission capacity between said power source and the drive wheels, comprising:

• a trouble detector for detecting that said wheel controller is in a situation unable to control the speed of said wheels normally;
• a braking detector for detecting that a braking operation to brake a rotation of said wheels is executed;
• a torque interruption controller for reducing the torque transmission capacity by said connection mechanism, when it is detected by said trouble detector that said wheel controller cannot control the speed of said wheels normally and when it is detected by said braking detector that the braking operation to brake the rotation of said wheels is executed;
• and
• an output raiser for raising an output or said power source, when it is detected by said trouble detector that said wheel controller cannot control the speed of said wheels normally and when it is detected by said braking detector that the braking operation to brake the rotation of said wheels is executed.

A control device for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes a wheel controller for controlling a speed of said wheels, and a continuously variable transmission with a lockup clutch, comprising:

• a trouble detector for detecting that said wheel controller is in a situation unable to control the speed of said wheels normally due to a failure of the wheel controller;
• a braking detector for detecting that a braking operation to brake a rotation of said wheels is executed;
• a release controller for controlling said lockup clutch to a release side to lower a torque transmission capacity of said lockup clutch, when it is detected by said trouble detector that said wheel controller cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detector that the braking operation to brake the rotation of said wheels is executed;
• and
• a continuously variable transmission control changer for changing control contents of said continuously variable transmission, when it is detected by said trouble detector that said wheel controller cannot control the speed of said wheels normally due to the failure and when it is detected by said braking detector that the braking operation to brake the rotation of said wheels is executed.

A controlling method for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes wheel controller for controlling a speed of said wheels, and a connection mechanism for increasing/decreasing a torque transmission capacity between said power source and the drive wheels, comprising:

• a trouble detecting step for detecting an unable situation to control the speed of said wheels normally due to a failure of the wheel controller;
• a braking detecting step for detecting that a braking operation to brake a rotation of said wheels is executed;
• and
• a torque interruption controlling step for reducing the torque transmission capacity by said connection mechanism, when it is detected that said wheel controller cannot control the speed of said wheels normally due to the failure and when it is detected that the braking operation to brake the rotation of said wheels is executed.

A controlling method for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes wheel controller for controlling a speed of said wheels, and a continuously variable transmission with a lockup clutch, comprising:

• a trouble detecting step for detecting an unable situation to control the speed of said wheels normally due to a failure of the wheel controller;
• a braking detecting step for detecting that a braking operation to brake the rotation of said wheels is executed;
• and
• a release controlling step for controlling said lockup clutch to a release side to lower a torque transmission capacity of said lockup clutch, when it is detected that said wheel controller cannot control the speed of said wheels normally due to the failure and when it is detected that the braking operation to brake the rotation of said wheels is executed.

A controlling method for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes a wheel controller for controlling a speed of said wheels, and a connection mechanism for increasing/decreasing a torque transmission capacity between said power source and the drive wheels, comprising:

• a trouble detecting step for detecting an unable situation to control the speed of said wheels normally due to a failure of the wheel controller;
• a braking detecting step for detecting that a braking operation to brake a rotation of said wheels is executed;
• a torque interruption controlling step for reducing the torque transmission capacity by said connection mechanism, when it is detected that said wheel controller cannot control the speed of said wheels normally and when it is detected that the braking operation to brake the rotation of said wheels is executed;
• and
• an output raising step for raising an output of said power source, when it is detected that said wheel controller cannot control the speed of said wheels normally and when it is detected that the braking operation to brake the rotation of said wheels is executed.

A controlling method for a drive line of a vehicle, in which the drive line from a power source to drive wheels includes a wheel controller for controlling a speed of said wheels, and a continuously variable transmission with a lockup clutch, comprising:

• a trouble detecting step for detecting an unable situation to control the speed of said wheels normally due to a failure of the wheel controller;
• a braking detecting step for detecting that a braking operation to brake a rotation of said wheels is executed;
• a release controlling step for controlling said lockup clutch to a release side to lower a torque transmission capacity of said lockup clutch, when it is detected that said wheel controller cannot control the speed of said wheels normally due to the failure and when it is detected that the braking operation to brake the rotation of said wheels is executed;
• and
• a continuously variable transmission control changing step for changing control contents of said continuously variable transmission, when it is detected that said wheel controller cannot control the speed of said wheels normally due to the failure and when it is detected that the braking operation to brake the rotation of said wheels is executed.