Jaguar Land Rover Limited

John Birch

Paul Malcolm Darnell

Jonathan Woodley

Paul Beever

Baptiste Bureau

David McGeoch

Ravindra Sabbella

William Rudman

Adam Brant

Krzysztof Kowalski

A method () of controlling an internal combustion engine () of a vehicle (), comprising: receiving at least one input () indicative of a current external environment proximal to the vehicle (); determining () in dependence on the at least one input () whether a hazard is present; determining a current propulsion demand () of the vehicle (); if it is determined that the current propulsion demand () is low, either commanding switching of the internal combustion engine () to an off state () if it is determined that a hazard is not present, or not commanding switching of the internal combustion engine () to the off state if it is determined that a hazard is present; and if it is determined that the current propulsion demand () is high, commanding switching of the internal combustion engine () to an on state if the internal combustion engine () is in the off state.

Methods for controlling stopping and starting of an engine

The invention relates to a verification module () for verifying accuracy of a controller (). The controller () is arranged to generate a demand based on a first input and a second input. The verification module () comprises; a calculation module () arranged to calculate an expected demand; a correction module () arranged to calculate an error between the demand and the expected demand and modify the expected demand to reduce the error; and a limiter () arranged to limit the demand in response to the error being greater than a threshold.

Verification module for verifying accuracy of a controller

The present invention relates to a powertrain control system () for a vehicle. The powertrain control system () includes a torque limit calculator () for generating a torque control signal based () on one or more vehicle operating parameters. A torque request module () is provided for generating a torque request signal () and a torque control module () controls the torque applied by the powertrain. The torque control module () is configured to receive the torque request signal () from the torque request module () and the torque control signal () from the torque limit calculator () and to control the torque applied by the powertrain in dependence on the torque request signal () and the torque control signal (). The present invention also relates to a control system; and a method of operating a powertrain control system.

Powertrain control system and method

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Coventry, United Kingdom

John Birch