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Methods and system for controlling driveline torque

一种动力传动系统、传动系的技术，应用在道路车辆驱动控制系统、控制装置、传动装置控制等方向，能够解决动能不是可回收或可重复使用等问题，达到改进变矩器离合器控制、减少转矩扰动、提高利用的效果

Active Publication Date: 2017-12-29
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a vehicle's kinetic energy is not recoverable or reusable as it is converted into heat and torque to spin the engine

Method used

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  • Methods and system for controlling driveline torque
  • Methods and system for controlling driveline torque
  • Methods and system for controlling driveline torque

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] This instruction is concerned with operating the drive train of a hybrid vehicle. The powertrain may include an engine, a motor, and a torque converter. Hybrid vehicles can include such figure 1 engine shown in. figure 1 The engine in can be included in such as figure 2 in the drive train shown. figure 1 and figure 2 system can provide Figure 3A and Figure 3B sequence of operations. Figure 4 The method can be included in figure 1 and figure 2 system to provide Figure 3A and Figure 3B sequence of operations.

[0015] refer to figure 1 , including one of the cylinders in the figure 1 The multi-cylinder internal combustion engine 10 shown in is controlled by an electronic engine controller 12 . Engine 10 includes cylinder head 35 and cylinder block 33 including combustion chamber 30 and cylinder walls 32 . Piston 36 is positioned within the cylinder walls and reciprocates via a connection with crankshaft 40 . Flywheel 97 and ring gear 99 are coupled...

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Abstract

Systems and methods for operating a hybrid powertrain that includes an engine and a motor / generator are described. The systems and methods adjust torque converter clutch opening responsive to whether or not a motor / generator is available to provide a negative torque to a driveline. Further, the motor / generator and the vehicle's engine are operated to provide a desired amount of driveline braking.

Description

technical field [0001] The present description relates to methods and systems for operating a powertrain of a hybrid vehicle. The methods and systems may be particularly useful for hybrid vehicles and provide wheel torque via an engine and a motor positioned along a shaft that provides input to a transmission. Background technique [0002] The vehicle is expected to decelerate at a predetermined rate under selected vehicle operating conditions. For example, if the driver fully releases the accelerator pedal, it is expected that the vehicle will decelerate at a predetermined rate until the vehicle reaches creep speed. Vehicle braking may be provided via the engine providing negative torque to the vehicle driveline. Negative driveline torque is applied to the vehicle wheels to slow the vehicle. One way to apply negative torque to the driveline via the engine is to enter a deceleration fuel off (DFSO) or deceleration fuel cutoff mode. In DFSO mode, fuel supply to one or mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/10B60W10/02B60W10/06B60W10/08B60W30/18
CPCB60W10/026B60W10/06B60W10/08B60W20/10B60W30/18109B60W2540/10B60W2510/1005B60W2520/10B60W2710/0644B60W2710/024B60W2710/081B60W50/029B60K6/48B60W30/18127B60W30/18136B60K2006/4825B60W2050/0297B60W2510/107B60W20/50B60W20/15B60W2510/246B60W2710/0627Y10S903/914Y10S903/946Y02T10/62B60W20/13B60K6/387B60W2510/087B60W2510/244B60W2710/0666B60W2710/083B60Y2200/92B60Y2300/202B60Y2300/421F16H61/143F16H63/46F16H2061/147
Inventor R·约翰瑞F·U·塞德邝明朗
Owner FORD GLOBAL TECH LLC
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