US 2017/0247027 A1 · PADDLE SHIFTER CONTROL OF HYBRID POWERTRAIN

Abstract

A vehicle comprises a hybrid powertrain includes an electric machine coupled between an automatic gearbox and an engine. The vehicle includes paddle shifters configured to output a driver requested gear change. The hybrid powertrain is configured to selectively operate in an economy mode that optimizes fuel economy. While operating in the economy mode, a controller may selectively inhibit the driver requested gear change when the change may negatively impact fuel economy. In the economy mode, the driver requested gear change may be inhibited during a demand for braking. If the driver requested gear change is a downshift request, the downshift is inhibited and simulated using electric machine torque.

Claims20

Dependent claims

A vehicle comprising:

a controller programmed to change a gear of a transmission in a hybrid powertrain in response to receiving a request from a paddle shifter and, in response to the hybrid powertrain operating in an economy mode and receiving the request in a presence of a brake demand signal indicative of a demand for braking, maintain the gear in an automatically selected gear.

Dependencies are inferred from the claim text.

Facts

Application

15/054,947Filed 26 Feb 2016

Published

31 Aug 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification38 codes

B60W 20/30
Control systems specially adapted for hybrid vehicles: control strategies involving selection of transmission gear ratio
B60K 6/387
Characterised by the driveline clutches: actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
B60K 6/48
Characterised by the architecture of the hybrid electric vehicle: parallel type
B60K 6/54
Architecture of the driveline characterised by arrangement or kind of transmission units: transmission for changing ratio

Paddle shifter control of hybrid powertrain

Life of this patent

Paddle shifter control of hybrid powertrain

Life of this patent

Abstract

Claims20