A mild hybrid vehicle controlling method, wherein the mild hybrid vehicle has a driver assistance module for detecting peripheral vehicle information and a mild hybrid starter & generator (MSHG) may comprises comparing, by a controller, the peripheral vehicle information with a predetermined reference value and deciding whether after-treatment regeneration control is performed or not according to a result of the comparison.

A method can include: detecting a distance between the host vehicle and a preceding vehicle and a current speed of the preceding vehicle; calculating a relative speed of the host vehicle with respect to the preceding vehicle based on a current speed of the host vehicle and the detected current speed of the preceding vehicle; determining whether to activate an engine idle sailing (EIS) function, in which a driving gear of the host vehicle shifts to neutral, based on the relative speed of the host vehicle with respect to the preceding vehicle and the detected distance between the host vehicle and the preceding vehicle; and in response to determining to activate the EIS function of the host vehicle, controlling operation of the host vehicle so as to activate the EIS function of the host vehicle, causing the driving gear of the host vehicle to shift to neutral.

A transmission controller gives an engagement instruction to a forward clutch so that the forward clutch is engaged when a rotation speed of the engine becomes a target engine rotation speed set on the basis at least of a vehicle speed and a speed ratio of a continuously variable transmission after the engine is started, if a cancellation request for a sailing-stop control is made during execution of the sailing-stop control, and the continuously variable transmission is downshifted before the forward clutch is engaged, if the target engine rotation speed when the cancellation request for the sailing-stop control is made is less than a first predetermined value.

A system, method, and apparatus includes management of coasting during operation of a vehicle having an engine that is selectively engageable to a driveline, a cruise control mode of operation, and a road speed governor mode of operation. A road speed governor mode of operation of the vehicle is active in response to a road speed governor operation condition being present wherein the driveline is engaged with the engine. When a coasting management condition is present, operation of the vehicle in the road speed governor mode is disabled, the driveline is disengaged from the engine, and the vehicle is operated in a coasting mode of operation. The coasting mode of operation can be canceled when a coasting mode of operation cancellation condition is present to operate the vehicle in a road speed governor mode of operation with the driveline re-engaged with the engine.

A driver assistance system in a motor vehicle, by which system, when the cruise control is activated, a predefined target speed is maintained essentially constantly via an electronic control device and sensors connected thereto. Depending on a control error with respect to the predefined speed, a drive system and/or a brake system is actuated with the aim of compensating the control error. The electronic control device is configured such that when a coasting mode is present with the cruise control actuated the current speed is detected by way of the sensors and the coasting mode is maintained despite a target-speed-dependent maximum permissible speed having been reached.

A method of operating a drive-train (1) of a motor vehicle, in particular an agricultural or municipal utility vehicle, having a drive engine (2), a motor vehicle transmission (4) and at least one drive axle (6). A connection between the drive engine (2) and the at least one drive axle (6) of the motor vehicle is separate automatically by way of a function, and a service brake (11) of the motor vehicle has to be actuated for activation of the function. To ensure an appropriate starting gear selection in various operating situations, during the course of the function triggered by a braking process, a brake pressure (p.sub.Brems), applied during the process, is determined and a starting gear is automatically determined as a function of the brake pressure (p.sub.Brems).

A vehicle engine automatic control device has a brake pedal operation amount detecting unit that detects an amount of brake pedal operation by a driver, a negative pressure-based force multiplying unit that multiplies a force, with which a brake is operated, using an intake negative pressure of an engine, a negative pressure detecting unit that detects a negative pressure of the negative pressure-based force multiplying unit, and a coast stop control unit that stops the engine when the amount of brake pedal operation that is detected is equal to or greater than a first operation amount threshold during coast drive, and re-starts the engine when the negative pressure that is detected falls below a first negative pressure threshold after the engine stops.

A method for improving operation of a vehicle that includes an engine, a transmission, and a torque converter clutch is disclosed. In one example, the method assesses whether or not driver braking is expected and adjusts driveline braking accordingly. The method freewheels the driveline to extend vehicle coasting when driver braking is not expected and the method increases or decreases driveline braking based on a closing distance between the vehicle and an object in the vehicle's path.

Various embodiments include a method for controlling a motor vehicle having an internal combustion engine with a crankshaft and a drivetrain separable from the internal combustion engine using a releasable clutch comprising: propelling the vehicle in a first operating state in a predetermined range around a speed while the internal combustion engine is off and is separated from the drivetrain by the releasable clutch; sensing a braking operation while in the first operating state; predicting whether a power demand is expected within a predetermined time interval; and, if the power demand is expected, setting the crankshaft of the internal combustion engine in rotation, or increasing a rotational speed of the crankshaft in preparation for an engine restart.

A vehicle control apparatus, configured to control a vehicle, includes an engine that is configured to drive wheels via a power transmission device. The vehicle control apparatus includes a towing state detector and an engine controller. The towing state detector is configured to detect whether the vehicle is in a towing state. The engine controller is configured to stop the engine in a case where a predetermined engine stopping condition is satisfied during traveling of the vehicle. The engine controller is configured to vary, in a case where the towing state detector detects that the vehicle is in the towing state, the predetermined engine stopping condition to reduce an operational range in which the engine is to be stopped compared with an operational range in a case where the towing state detector does not detect that the vehicle is in the towing state.