A start/stop device initiates an automatic activation process of an automatically deactivated drive machine of a motor vehicle, in particular of a motor vehicle with an automatic transmission. The drive machine can be automatically deactivated when the motor vehicle is traveling, and the automatically deactivated drive machine can be activated on the basis of driver actions. The start/stop device is configured to initiate an automatic activation of the drive machine which is automatically deactivated when the motor vehicle is traveling on the basis of a detected drive dynamic desired by the driver.

Methods and systems are provided for selectively disabling a stop-start function of a vehicle based on a predicted anxiety of a driver of the vehicle upon merging into transverse traffic. In one example, selectively disabling the stop-start function of a vehicle based on a predicted anxiety of the driver of the vehicle includes, when approaching an intersection having a first traffic pattern, disabling a stop-start function responsive to an estimated merging acceleration for the intersection exceeding a threshold acceleration rate of the vehicle.

A control system for a vehicle is provided, which includes a driving force source configured to generate torque for driving drive wheels, a steering angle related value sensor configured to detect a steering angle related value of a steering device of the vehicle, a grille shutter configured to adjust an opening-and-closing degree of an opening formed in a front surface of a vehicle body, and a controller configured to control the torque to control a vehicle attitude based on the steering angle related value. Based on the steering angle related value, when the controller determines that a turning operation of the steering device is performed, it performs a torque decreasing control for reducing the torque to add deceleration to the vehicle, and when the grille shutter opening is large, the controller increases the torque reduction amount in the torque decreasing control more than when the opening is small.

A control system for a vehicle is provided, which includes a driving force source configured to generate torque for driving drive wheels, a steering angle related value sensor configured to detect a steering angle related value of a steering device of the vehicle, a grille shutter configured to adjust an opening-and-closing degree of an opening formed in a front surface of a vehicle body, and a controller configured to control the torque to control a vehicle attitude based on the steering angle related value. Based on the steering angle related value, when the controller determines that a turning operation of the steering device is performed, it performs a torque decreasing control for reducing the torque to add deceleration to the vehicle, and when the grille shutter opening is large, the controller increases the torque reduction amount in the torque decreasing control more than when the opening is small.

A SS control device is configured to: be allowed to stop an internal combustion engine when a required voltage is smaller than or equal to a first voltage value under a state where a stopping condition is satisfied, and be prohibited from stopping the internal combustion engine when the required voltage is larger than the first voltage value under a state where the stopping condition is satisfied; and be allowed to restart the internal combustion engine when the required voltage is smaller than or equal to a second voltage value smaller than the first voltage value under a state where the restart condition is satisfied, and be prohibited from restarting the internal combustion engine when the required voltage is larger than the second voltage value under a state where the restart condition is satisfied.

A start/stop device initiates an automatic activation process of an automatically deactivated drive machine of a motor vehicle, in particular of a motor vehicle with an automatic transmission. The drive machine can be automatically deactivated when the motor vehicle is traveling, and the automatically deactivated drive machine can be activated on the basis of driver actions. The start/stop device is configured to initiate an automatic activation of the drive machine which is automatically deactivated when the motor vehicle is traveling on the basis of a detected drive dynamic desired by the driver.

A SS control device is configured to: be allowed to stop an internal combustion engine when a required voltage is smaller than or equal to a first voltage value under a state where a stopping condition is satisfied, and be prohibited from stopping the internal combustion engine when the required voltage is larger than the first voltage value under a state where the stopping condition is satisfied; and be allowed to restart the internal combustion engine when the required voltage is smaller than or equal to a second voltage value smaller than the first voltage value under a state where the restart condition is satisfied, and be prohibited from restarting the internal combustion engine when the required voltage is larger than the second voltage value under a state where the restart condition is satisfied.

An engine of a stop/start vehicle, after the engine has been automatically stopped, may be commanded to automatically restart in response to detecting that the vehicle is in a turn lane based on traffic data in a vicinity of the vehicle such that the engine is automatically restarted before a brake pedal is released and a steering wheel is turned.

An automatic control apparatus for an engine detects an operation position of a mechanical shift lever for shifting gears of a transmission, automatically stops the engine when a predetermined condition is satisfied in the case where the operation position is at a first specific range, and automatically restarts the engine in the case where, after the operation position is switched from the first specific range to a second specific range while the engine is stopped, the second specific range is maintained for a predetermined time. When the operation position is switched from the first specific range to the second specific range while the engine is stopped, it is determined whether or not the driver has an intention to start the vehicle, and if YES, the predetermined time is set to be shorter than when it is determined that there is no intention to start the vehicle.

An automatic engine control apparatus installed in a vehicle causes an engine of the vehicle to stop automatically when a predetermined stop condition is satisfied, and after the automatic stop of the engine, causes the engine to restart automatically when a predetermined restarting condition is satisfied. The apparatus includes an electronic control unit configured to inhibit or permit, while the vehicle is stopped, a second automatic stop of the engine in response to the predetermined stop condition being satisfied, depending on whether the predetermined restarting condition satisfied most recently to have caused the engine to restart automatically was a first restarting condition or a second restarting condition different from the first restarting condition. The first restarting condition represents an intention of a driver of the vehicle to start moving the vehicle.