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Method and system for holding a vehicle stopped on a ramp

A vehicle system and vehicle technology, applied in the system field of drivability and fuel economy, can solve problems such as vehicle rolling, and achieve the effects of improving drivability, reducing wear and increasing working life

Active Publication Date: 2017-09-19
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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  • Method and system for holding a vehicle stopped on a ramp
  • Method and system for holding a vehicle stopped on a ramp
  • Method and system for holding a vehicle stopped on a ramp

Examples

Experimental program
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Embodiment Construction

[0038] The present 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. The engine may or may not be run with a driveline integrated starter / generator (eg, an electric motor or motor, which may be referred to simply as DISG) during vehicle operation. The driveline integrated starter / generator is engaged into the driveline on the same axis as the engine crankshaft and turns whenever the torque converter impeller rotates. Also, DISG may not selectively engage or disengage the driveline. Rather, the DISG is an integral part of the drive train. Also, the DISG can be operated with or without the engine running. The mass and inertia of the DISG belongs to the driveline to provide or absorb torque from the driveline when the DISG is not operating.

[0039] The drive train can be Figure 4 method runs. In some examples, the drive train may be based on Figure 5-10 Dri...

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PUM

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Abstract

Systems and methods for improving hybrid vehicle operation are disclosed. In one example, the holding force of a vehicle parked on a ramp is adjusted based on the gradient of the ramp.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application 61 / 643,127, filed May 4, 2012, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to systems and methods for improving the drivability and fuel economy of vehicles. The method is particularly useful for engines selectively connected to an electric motor and a transmission. Background technique [0004] Hybrid vehicles may include engines that automatically stop and start to save fuel. 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 motion after releasing the vehicle brakes. Contents of the invention [0005] The inventors herein have recognized the above mentioned disadvantages and have developed a vehicle stopping method comprising...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/06B60W10/184B60W10/06B60W10/08B60W10/115B60W30/18B60W20/00
CPCY02T10/62
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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