Methods and systems are provided for addressing pre-ignition that may be induced in response to actions taken to mitigate a cylinder misfire. An amount of engine load limiting applied may be adjusted to reduce the likelihood pre-ignition while also addressing component over-temperature issues. By limiting an engine load while shutting off fuel in a misfiring cylinder, and while combusting a lean air-fuel mixture in the remaining cylinders, pre-ignition induced by the misfire-mitigating lean combustion conditions can be reduced.

Methods and systems are provided for addressing pre-ignition that may be induced in response to actions taken to mitigate a cylinder misfire. An amount of engine load limiting applied may be adjusted to reduce the likelihood pre-ignition while also addressing component over-temperature issues. By limiting an engine load while shutting off fuel in a misfiring cylinder, and while combusting a lean air-fuel mixture in the remaining cylinders, pre-ignition induced by the misfire-mitigating lean combustion conditions can be reduced.

There is provided an idling stop device. An ECU sets a lighting color index by recognizing a lighting color of a traffic light in front of a vehicle based upon external environment captured by an onboard camera, sets a distance index based upon a distance between the traffic light and a vehicle just in front of the vehicle, and sets a brake index based upon whether a brake lamp of the vehicle just in front of the vehicle is turned on or not. The ECU adds up these indices to obtain an ISS general index, sets a basic ISS speed based upon the ISS general index, and sets an ISS start speed based upon the basic ISS speed and a mode-based coefficient set based upon an engine mode.

There is provided an idling stop device. An ECU sets a lighting color index by recognizing a lighting color of a traffic light in front of a vehicle based upon external environment captured by an onboard camera, sets a distance index based upon a distance between the traffic light and a vehicle just in front of the vehicle, and sets a brake index based upon whether a brake lamp of the vehicle just in front of the vehicle is turned on or not. The ECU adds up these indices to obtain an ISS general index, sets a basic ISS speed based upon the ISS general index, and sets an ISS start speed based upon the basic ISS speed and a mode-based coefficient set based upon an engine mode.

The present invention relates to a method and device for controlling a vehicle, more particularly, the power train of a compacting machine for earth moving operations, comprising a hydraulic travel pump and a hydraulic travel motor. Control is effected according to a specified control profile when a specified driving operation is to be carried out in that an adjustment of the travel pump is carried out which is independent of the rotational speed of the internal combustion engine. This makes it possible to retain, on the one hand, the rotational speed of the internal combustion engine in the case of abrupt stops of movement or changes in the direction of movement and, on the other hand, to adapt the rotational speed of the engine in the case of somewhat longer uninterrupted pauses between two changes in the traveling behavior, wherein comparatively large fluctuations in the rotational speed are avoided.

The present invention relates to a method and device for controlling a vehicle, more particularly, the power train of a compacting machine for earth moving operations, comprising a hydraulic travel pump and a hydraulic travel motor. Control is effected according to a specified control profile when a specified driving operation is to be carried out in that an adjustment of the travel pump is carried out which is independent of the rotational speed of the internal combustion engine. This makes it possible to retain, on the one hand, the rotational speed of the internal combustion engine in the case of abrupt stops of movement or changes in the direction of movement and, on the other hand, to adapt the rotational speed of the engine in the case of somewhat longer uninterrupted pauses between two changes in the traveling behavior, wherein comparatively large fluctuations in the rotational speed are avoided.

This application discusses various ways to adjust the performance of a variable input control in accordance with previous use data. In some embodiments, the previous use data can be associated with particular users of the variable input control. In this way, a response provided by the user input control can be adjusted to accommodate particular patterns of use on a user by user basis. In some embodiments, the variable input control can take the form of an accelerator pedal of a vehicle. Performance of the accelerator pedal can be adjusted by changing an amount of engine power provided for a particular accelerator pedal position. The adjustment can arrange commonly utilized power settings in the middle of the accelerator pedal range of motion to make manipulation of the accelerator pedal more comfortable and convenient for each user of the accelerator pedal.

This application discusses various ways to adjust the performance of a variable input control in accordance with previous use data. In some embodiments, the previous use data can be associated with particular users of the variable input control. In this way, a response provided by the user input control can be adjusted to accommodate particular patterns of use on a user by user basis. In some embodiments, the variable input control can take the form of an accelerator pedal of a vehicle. Performance of the accelerator pedal can be adjusted by changing an amount of engine power provided for a particular accelerator pedal position. The adjustment can arrange commonly utilized power settings in the middle of the accelerator pedal range of motion to make manipulation of the accelerator pedal more comfortable and convenient for each user of the accelerator pedal.

A vehicle has an engine, a fuel tank, and a controller configured to selectively operate the engine, during one or more drive cycles, until a specified fraction of fuel from the tank has been consumed in response to expiration of a predefined time period to limit fuel degradation. A powertrain system has a traction battery, an engine, a fuel tank, and a controller configured to selectively operate the engine in response to a quality of fuel in the tank being below a threshold until a specified fraction of fuel has been consumed, thereby limiting fuel degradation. A method of controlling a vehicle includes, in response to expiration of a predefined time period, selectively operating an engine, during one or more vehicle drive cycles, such that state of charge of a traction battery is generally maintained until a specified fraction of fuel in a fuel tank has been consumed to limit degradation of the fuel.

A method and system for blending between different torque maps of a vehicle in a smooth and progressive manner. Blending is delayed if the vehicle driver cannot detect that blending is taking place, for example, when the difference between a source map and target map is below a predetermined threshold.