A method and a system for retention of a vehicle stopping on a slope

A vehicle, automatic stop technology, applied in the system field of drivability and fuel economy, can solve problems such as vehicle rolling, achieve the effect of improving drivability, reducing torque disturbance of the power train, and increasing the working life

Active Publication Date: 2013-11-06
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the engine stops automatically when the vehicle is stopped on a grade, the vehicle may roll if the driver releases the vehicle brakes
Also, the driver may object to vehicle movement after the vehicle brakes are released

Method used

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  • A method and a system for retention of a vehicle stopping on a slope
  • A method and a system for retention of a vehicle stopping on a slope
  • A method and a system for retention of a vehicle stopping on a slope

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Embodiment Construction

[0038] The invention relates to controlling the drive train of a hybrid vehicle. Such as Figure 1-3 As shown, the hybrid vehicle may include an engine and an electric motor. During the operation of the vehicle, the engine may or may not be operated with a powertrain integrated starter / generator (for example, an electric motor or a motor that may be referred to as DISG for short). The drive train integrated starter / generator is engaged into the drive train on the same axis as the engine crankshaft and rotates whenever the torque converter pump wheel rotates. Furthermore, the DISG may not selectively engage or disengage from the drive train. Rather, the DISG is an integral part of the drive train. Also, the DISG can be operated with or without the engine running. When the DISG is not running, the mass and inertia of the DISG belong to the drive train to provide or absorb the torque from the drive train.

[0039] The drive train can follow Figure 4 The method runs. In some ex...

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PUM

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Abstract

The invention discloses a system and a method for improving the operation of a hybrid vehicle. In one embodiment, the retention of the vehicle stopping on the slope is adjusted according to the gradient of the slope.

Description

[0001] Cross references to related applications [0002] This application claims priority from U.S. Provisional Patent Application 61 / 643,127 filed on May 4, 2012, the entire content of which is incorporated herein by reference for all purposes. Technical field [0003] The present invention relates to a system and method for improving the driving performance and fuel economy of a vehicle. This method is particularly useful for engines that are selectively connected to electric motors and transmissions. Background technique [0004] Hybrid vehicles may include engines that automatically stop and start to save fuel. If the engine stops automatically when the vehicle stops on a slope, if the driver releases the brakes of the vehicle, the vehicle may roll. Also, the driver may oppose the movement of the vehicle after releasing the brake of the vehicle. Summary of the invention [0005] The inventors herein have recognized the above-mentioned disadvantages and have developed a vehicle...

Claims

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Application Information

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IPC IPC(8): B60W30/06B60W10/18B60W10/04B60W30/00
CPCY02T10/6204Y02T10/52Y02T10/62
Inventor A·O`C·吉布森D·奥欣斯盖J·W·L·麦克卡莱姆A·N·班克F·涅多列佐夫
Owner FORD GLOBAL TECH LLC
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