Unlock instant, AI-driven research and patent intelligence for your innovation.

Shift management in propulsion system control based on model prediction

A technology of propulsion system and control system, applied in the direction of control device, external condition input parameters, driver input parameters, etc.

Active Publication Date: 2022-03-15
GM GLOBAL TECH OPERATIONS LLC
View PDF18 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some cases other shift patterns or pulley ratios may be desirable

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shift management in propulsion system control based on model prediction
  • Shift management in propulsion system control based on model prediction
  • Shift management in propulsion system control based on model prediction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] refer to figure 1 , shows an exemplary motor vehicle and is generally indicated by reference numeral 9 . Motor vehicle 9 is illustrated as a passenger car, but it should be understood that motor vehicle 9 may be any type of vehicle, such as a truck, van, sport utility vehicle, or the like. Motor vehicle 9 includes an exemplary propulsion system 10 . It should be understood at the outset that while a rear-wheel drive propulsion system 10 has been illustrated, the motor vehicle 9 may have a front-wheel drive propulsion system, an all-wheel drive propulsion system, or four-wheel drive propulsion systems without departing from the spirit and scope of the present disclosure. drive propulsion system.

[0065] Propulsion system 10 generally includes an engine 12 interconnected with a transmission 14 and a final drive unit 16 . Engine 12 may be a conventional internal combustion or electric motor, a hybrid engine, or any other type of prime mover without departing from the s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A propulsion system, control system, and method that use a model predictive control system to generate multiple sets of possible command values ​​and determine a cost for each set of possible command values. The set of possible command values ​​with the lowest cost is determined and defined as the set of selected command values. In some cases, the command value determined by the MPC may be overridden by another gear ratio command based on an override input. The minimum and maximum gear ratios are determined based on the override input, and thereby determine the constrained (or arbitration) gear ratio. The constrained or arbitration gear ratio is used to determine whether to apply the MPC determined gear ratio or a gear ratio based on the arbitration gear ratio to determine the final commanded gear ratio. Pressure is commanded to a transmission pulley assembly configured to implement a final commanded gear ratio.

Description

technical field [0001] The present disclosure relates to a control system and method for a propulsion system of a motor vehicle having an engine and a transmission, and more particularly to a control system and method using a multivariable controller. Background technique [0002] Propulsion system control in a motor vehicle typically involves reading driver and vehicle inputs, such as accelerator pedal position, vehicle sensor data, and torque requests, and communicating these inputs to the engine control module (ECM) and transmission control module ( TCM). The ECM can calculate the requested axle torque from driver and vehicle inputs. The requested axle torque may then be communicated to the engine and ECM. The engine is controlled to produce actual axle torque based on the requested axle torque. At the same time, and typically simultaneously with the calculation of desired engine and axle torques, the desired gear ratio is calculated from the requested axle torque and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/18B60W10/06B60W10/10
CPCB60W30/18B60W10/06B60W10/10B60W2710/0666B60W2710/1005B60W10/04B60W50/06B60W50/10B60W2710/10B60W30/188B60W2710/1083B60W10/107B60W30/18136B60W30/18072B60W2510/0657B60W2510/0676B60W2510/069B60W2510/101B60W2510/107B60W2510/0623B60W2540/16B60W2520/30B60W2520/40B60W2555/40
Inventor P·G·奥塔内斯M·李维斯兹C·J·温格兹C·莱因霍尔德M·T·萨兹姆斯基M·M·诺瓦克B·帕提帕提
Owner GM GLOBAL TECH OPERATIONS LLC