In one aspect, a method for adjusting torque limits for a work vehicle may include controlling, with a computing device, an operation of an engine of the work vehicle such that a torque output of the engine is maintained at or below a baseline engine torque limit. The method may also include receiving, with the computing device, an input associated with a current hydraulic power requirement of a hydraulic system of the work vehicle, and adjusting, with the computing device, a torque limit for the engine from the baseline engine torque limit to an adjusted engine torque limit based on the current hydraulic power requirement of the hydraulic system. In addition, the method may include controlling, with the computing device, the operation of the engine such that the torque output of the engine is maintained at or below the adjusted engine torque limit.

A hybrid vehicle having an engine, an electric machine, and a step-ratio transmission includes a controller programmed to, in response to an accelerator lift-pedal event when operating in a towing mode, learn a vehicle speed, and apply a lift-pedal torque when vehicle speed exceeds the learned vehicle speed, and apply an adjusted lift-pedal torque based on a gear ratio after downshifting the transmission to maintain a constant output shaft torque otherwise.

Disclosed is a vehicle control device which is applied to a vehicle equipped with an engine (10) and an engine torque adjustment mechanism for adjusting an engine torque. The control device comprises a PCM (50) configured, upon satisfaction of a condition that the vehicle is traveling and a steering angle-related value relevant to a steering angle of a steering device is increasing, to control the engine torque adjustment mechanism to reduce the engine torque, so as to execute a vehicle attitude control for generating vehicle deceleration. The PCM (50) is configured, upon satisfaction of a vehicle attitude control-terminating condition for terminating the vehicle attitude control, to control the engine torque adjustment mechanism to restore the engine torque to an original level of torque before the execution of the vehicle attitude control. The PCM (50) is further configured to gradually ease the vehicle attitude control-terminating condition, as the number of times of combustion per unit time in the engine (10) becomes smaller.

A method is provided to start a hybrid powertrain to optimize fuel consumption, wherein such hybrid powertrain comprises a combustion engine; a gearbox with input shaft and output shaft; a first planetary gear, connected to the input shaft and a first main shaft; a second planetary gear, connected to the first planetary gear and a second main shaft; first and second electrical machines respectively, connected to the first and second planetary gears; one gear pair connected with the first main shaft; and one gear pair connected with the second main shaft. The method comprising: ensuring that the moveable parts of each of the first and second planetary gears are respectively disconnected from each other; bringing the combustion engine to a predetermined engine speed (n.sub.ice); and controlling the first and the second electrical machine in such a way that a desired torque (T.sub.Drv) is achieved in the output shaft.

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.

A continuously variable transmission includes two planetary gear sets having two planetary outputs and a planetary output shaft with a first drive gear. A variator drives a ring gear of the second planetary gear set, and a transmission input shaft is driven by the engine, which also drives the variator and the planetary input. Forward and reverse output systems are connected to the planetary output shaft and a transmission output shaft. A first clutch connects the first planetary output to the first drive gear, and a second clutch connects the second planetary output to the first drive gear. A third clutch connects the second planetary output to a second drive gear of the planetary output shaft, with the second drive gear being connected to the forward output system.

The disclosure relates to a vehicle control apparatus. The apparatus executes a torque limit control for limiting an output torque of a vehicle to a torque equal to or smaller than a first torque when a torque limit condition is satisfied and a forced braking control for forcibly braking the vehicle when a forced braking condition is satisfied. The apparatus determines whether or not it is estimated that a stop condition that if the output torque is a predetermined torque larger, the forced braking condition is satisfied, is satisfied. The apparatus executes the torque limit control such that the output torque is limited to a torque equal to or smaller than a second torque equal to or larger than the predetermined torque when the torque limit condition and the stop condition are satisfied.

A torque request module is configured to, while a vehicle speed is greater than a predetermined speed, decrease a torque request in response to a first signal from a start/stop switch being in a first state continuously for greater than a first predetermined period and less than a second predetermined period. A control module is configured to, as the torque request decreases, decrease torque output of at least one of an engine and an electric motor. A light control module is configured to: selectively turn exterior hazard lights on and off in response to a second signal from a hazard light switch being in a first state; and selectively turn the exterior hazard lights on and off in response to the first signal from the start/stop switch being in the first state continuously for greater than the first predetermined period.

A control system and method for controlling a multiple gear ratio automatic transmission in a powertrain for an automatic transmission having pressure activated friction torque elements to effect gear ratio upshifts. The friction torque elements are synchronously engaged and released during a torque phase of an upshift event as torque from a torque source is increased while allowing the off-going friction elements to slip, followed by an inertia phase during which torque from a torque source is modulated. A perceptible transmission output torque reduction during an upshift is avoided. Measured torque values are used during a torque phase of the upshift to correct an estimated oncoming friction element target torque so that transient torque disturbances at an oncoming clutch are avoided and torque transients at the output shaft are reduced.

Embodiments of the present invention provide a system comprising: a first controller operable to assume one of a plurality of respective states, in a first state the first controller being configured automatically to cause a powertrain to develop drive torque and cause a vehicle to operate in accordance with a target speed value, the first controller being configured to receive a door state indicator signal indicative of whether a door is in an open or closed state, and an occupant presence indicator signal indicative of whether an occupant is present in a given seat of a vehicle, the system being configured not to permit operation of the first controller in the first state in dependence on the door state indicator signal and the occupant presence indicator signal.