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System for rationalizing measured gear ratio values in a vehicle propulsion control system

A technology for transmission ratios and vehicles, applied in the direction of controls, vehicle components, transmission control, etc., to solve problems such as inaccurate transmission ratios, inaccurate engine control commands, controls and/or requests, computer damage, etc.

Inactive Publication Date: 2018-04-17
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these sensors, signals and resulting values ​​used by the processor may be susceptible to malfunction, error and / or corruption
Computers can be susceptible to damage from ultraviolet light, electromagnetic pulses, temperature changes, and many other factors too numerous to list
In the event of malfunctions or other errors resulting in inaccurate or corrupted gear ratio values, commands, controls and / or requests to the engine controls may be inaccurate

Method used

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  • System for rationalizing measured gear ratio values in a vehicle propulsion control system
  • System for rationalizing measured gear ratio values in a vehicle propulsion control system
  • System for rationalizing measured gear ratio values in a vehicle propulsion control system

Examples

Experimental program
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Embodiment Construction

[0022] refer to figure 1 , schematically depicts an exemplary vehicle 100 having a prime mover 102 (eg, engine, electric motor, etc.). A prime mover 102 provides torque to an input shaft 104 that is connected to a transmission 106 . The transmission converts input torque from an input shaft 104 to output torque on an output shaft 108 based on the gear ratio of the transmission 106. The output shaft 108 may form part of or be connected to a transaxle which provides power to propel the drive wheels 110 of the vehicle 100. The desired input torque from the prime mover on the input shaft 104 is governed according to the following equation:

[0023] T e =T axl / ratio(1)

[0024] Among them: T e is the desired input torque on the input shaft (also known as engine torque), T axl is the desired output torque on the output shaft (may also be referred to as axle torque), and the ratio represents the overall transmission ratio between the engine 102 and the drive wheels 110. The ...

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PUM

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Abstract

A controller for a vehicle propulsion system that includes a prime mover, a transmission connected to the prime mover to receive input torque on an input shaft and to convert the input torque to an output torque on an output shaft, a transmission input shaft speed sensor, and a transmission output shaft speed sensor. The controller provides a gear ratio value that is based upon a signal indicatingan operating condition of the transmission other than a signal from the transmission input shaft speed sensor and the transmission output shaft sensor.

Description

technical field [0001] The present disclosure relates to a system for rationalizing measured transmission ratio values ​​in a vehicle propulsion control system. Background technique [0002] This background generally presents the context of the disclosure. The work of the presently named inventors is neither expressly nor implicitly acknowledged as having been described in this Background and in respect of aspects which, at the time of filing, would not otherwise be considered prior art is the prior art of the present disclosure. [0003] A motor vehicle includes a prime mover that generates an input torque. The received input torque is transmitted across the input shaft to the transmission. The transmission receives input torque and converts it to output torque on an output shaft. The output torque is a multiple of the transmission's input torque and gear ratio. [0004] Typically, a prime mover is controlled such that it provides a desired or commanded amount of input...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/06B60W10/101B60W40/00
CPCB60K17/06B60W10/101B60W40/00B60W2710/1005F16H59/68F16H61/12F16H2061/1224F16H2061/1284F16H61/66F16H61/688
Inventor R·F·小洛赫奥克M·恩迪亚耶B·奥尔森P·G·奥塔内斯M·S·莱因哈特J·麦基弗
Owner GM GLOBAL TECH OPERATIONS LLC
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