Scania Cv Ab

Mattias Nilsson

Mats Liwell

Afram Kourie

Magnus Granström

Fredrik Sundén

Fredrik Sunden

Julien Bidot

Marcello Cirillo

Samuel Malinen

Marco Trincavelli

Kourie Afram

Erik Öhlund

Jiwung Choi

Rui Oliveira

Method, control unit, and target arrangement of a leading vehicle for triggering a follower vehicle, which is situated at a lateral distance from the leading vehicle, to coordinate its movements with the leading vehicle. The target arrangement comprises a target configured to be placed at a lateral distance from to the leading vehicle. The target is also configured to be recognized by at least one forwardly directed sensor of the follower vehicle.

Target arrangement, method, and control unit for following a target vehicle

A method () and a control unit () for ground bearing capacity analysis. The method () steps include determining () a shape of the terrain segment () ahead of a vehicle (), based on sensor measurements; predicting () a distance between a sensor () of the vehicle () and the ground () at the terrain segment (), before the vehicle () moves into the terrain segment (); measuring () the distance between the sensor () of the vehicle () and the ground () when the vehicle () has moved into the terrain segment (); and determining () that the terrain segment () is to be avoided due to insufficient bearing capacity when the predicted () distance between the sensor () and the ground () exceeds the measured () distance between the sensor () and the ground (). Also, a method () and control unit () for route planning of the vehicle () are described.

Method and control unit for ground bearing capacity analysis

The present invention relates to a method to control a hybrid powertrain, comprising a combustion engine, an electric machine, a gearbox with input shaft and output shaft, wherein the combustion engine and the electric machine are connected to the input shaft. The method comprises the following steps: a) disconnecting the combustion engine from the input shaft with a coupling device, b) engaging a starting gear in the gearbox, which starting gear is higher than the gear at which the combustion engine's torque at idling speed is able to operate the input shaft, c) generating a torque in the input shaft with the electric machine, d) accelerating the electric machine, and e) connecting the combustion engine to the input shaft with the coupling device when the electric machine has reached substantially the same rotational speed as the combustion engine. The invention also relates to a hybrid powertrain and a vehicle.

Method for controlling a hybrid powertrain, a hybrid powertrain, and a vehicle comprising such a hybrid powertrain

The present invention relates to a method for decelerating a vehicle comprising an electrical machine being arranged to provide a controllable torque to at least one drive wheel, said vehicle including driver controllable means for actively requesting a torque for propelling the vehicle. The method includes, when a driver request for a propelling torque is reduced at least to a first extent: applying a first brake torque by means of said electrical machine, by means of said first brake torque, decelerate said vehicle to a stationary state, and by means of said electrical machine, when said vehicle has been decelerated to said stationary state, continue applying a torque by means of said electrical machine to keep said vehicle in said stationary state.

Method and system for decelerating a vehicle

A method for shifting in a vehicle () with a hybrid powertrain (), the powertrain includes: a combustion engine (), an electric machine (), a gearbox () with an input shaft () and a main shaft (), wherein the combustion engine () and the electric machine () are connected to the input shaft (); and a lay shaft (), via gear sets (and) is connected to the input shaft () and the main shaft (), so that they form a split gear unit () and a main gear unit (). The method has the steps: a) to bring the main gear unit () into a substantially zero torque state, b) in the event the input shaft () and the lay shaft () must both be accelerated or decelerated: to initiate synchronization of the speed of the lay shaft () with, on the one hand, the speed of the input shaft (), and, on the other hand, the speed of the main shaft (), at a joint first point in time (t), c) to engage a gear in the split gear unit () when the speed of the lay shaft () has been synchronized with the speed of the input shaft () at a second point in time (t), and d) to engage a gear in the main gear unit () when the speed of the lay shaft () has been synchronized with the speed of the main shaft () at a third point in time (t). Also a hybrid powertrain () and a vehicle (), as well as a computer program (P) and a computer program product are disclosed, which perform the method.

Method for fast change of gears in a vehicle comprising a hybrid driveline

A method to control a hybrid powertrain () in a vehicle, the powertrain including a combustion engine (), an electric machine () and a gearbox () with an input shaft () and output shaft (), wherein the combustion engine () and the electric machine () are connected to the input shaft (). The method includes the steps of controlling the gearbox () to a neutral position; controlling the speed of the electric machine () to a predetermined speed, corresponding to a target speed for the input shaft () according to the next selected gear; engaging a gear in the gearbox (); controlling the electric machine (), so that the electric machine () accelerates or decelerates depending on a requested driving torque for the vehicle (); detecting when a control signal for the electric machine () corresponds to a predetermined signal value; and controlling the electric machine () to the requested driving torque. Also, a hybrid powertrain and a vehicle (), and a computer program (P) and a computer program product for performing the method are disclosed.

Method for controlling gear shifting in a hybrid driveline by use of an electric machine

A method and a system for estimating a road gradient &#x3b1; by using a sensor fusion: Detect whether at least one dynamic process is affecting the vehicle. Estimate gradient &#x3b1; by means of the sensor fusion by joint weighting of at least two input signals to the sensor fusion. The at least two input signals include a signal based on an accelerometer and an input signal based on at least one force equation. At least one of the input signals and/or at least one weighting parameter for the sensor fusion are determined on the basis of detecting whether the at least one dynamic process is affecting the vehicle.

Growing community of inventors

Södertälje, Sweden

Mattias Nilsson