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Method of operating hybrid drivetrain

A power transmission system and transmission system technology are applied in the field of hybrid power transmission system to achieve the effect of improving efficiency

Pending Publication Date: 2019-12-13
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in the case of hybrid and autonomous drives, fuel economy is of particular importance and presents challenges

Method used

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  • Method of operating hybrid drivetrain
  • Method of operating hybrid drivetrain
  • Method of operating hybrid drivetrain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 with figure 2 A design variant of the method according to the invention is shown in the form of a flow chart. In step 1, turn on the cruise control mode. In step 2 , it is checked whether the limiting conditions for decoupling the internal combustion engine from the wheels and whether the limiting conditions for operating the internal combustion engine in switching mode are fulfilled.

[0028] If the condition is not met, the method returns. If in step 2 said preconditions are met, ie if all checked conditions are met, then in step 3 the fuel consumption during the switching operation is estimated, ie a hypothetical fuel consumption is determined. Current fuel consumption is also determined and compared to estimated fuel consumption. If the current fuel consumption is higher than the estimated fuel consumption during the switch operation, the method proceeds to step 4 . If the current fuel consumption is not higher than the fuel consumption estimated in s...

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Abstract

The invention relates to a method for operating a hybrid drivetrain, and provides a method for operating a hybrid drivetrain (20) for driving a number of wheels (23, 24) of a motor vehicle (30), the hybrid drivetrain (20) comprising an internal combustion engine (21) and at least one electric machine (32, 33, 34). If there is at least one condition that indicates a coasting state of the motor vehicle (30), the internal combustion engine is decoupled from the number of wheels (23) by means of an electronic clutch (26) and the electric machine (32, 33, 34) are coupled to the number of wheels (23, 24).

Description

technical field [0001] The invention relates to a method for operating a hybrid drivetrain. The invention also relates to a hybrid drivetrain, a motor vehicle, a computer program product and a computer readable data carrier. Background technique [0002] With regard to the operation of motor vehicles, minimizing fuel consumption is a general concern. Especially in the case of hybrid and autonomous drives, fuel economy is of particular importance and at the same time poses challenges. [0003] Regarding automatic transmissions, such as described in WO2017 / 216437A1, when certain operating conditions are met, the clutch is automatically disconnected or disengaged, and thus the vehicle is sometimes in a rolling state. Contents of the invention [0004] It is an object of the present invention to use the rolling state of a motor vehicle in conjunction with a hybrid drive system to improve fuel economy. [0005] This object is achieved by a method for operating a hybrid power...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/06B60W10/08B60W40/105B60W20/10
CPCB60W10/06B60W10/08B60W20/10B60W40/105B60W2710/06B60W2710/08B60W10/02B60W20/40B60W30/14B60W30/18072B60W2030/18081B60W2030/1809B60W2520/10B60W2540/10Y02T10/60Y02T10/62
Inventor F·德斯梅特
Owner FORD GLOBAL TECH LLC
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