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Vehicle, method of controlling oil delivery in a vehicle and method for decelerating a vehicle

A vehicle and vehicle operating state technology, applied in the field of vehicles, controlling oil delivery in vehicles and decelerating vehicles, can solve the problems of rotational energy dissipation, limited, unacceptable additional electrical energy, etc., to reduce rotational loss, extend the effect of life

Inactive Publication Date: 2015-11-11
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such energy conversion by regenerative braking is limited under some vehicle operating conditions.
For example, when the energy storage device is fully charged or nearly fully charged, it cannot accept additional electrical energy and at least some rotational energy must be dissipated at the brakes

Method used

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  • Vehicle, method of controlling oil delivery in a vehicle and method for decelerating a vehicle
  • Vehicle, method of controlling oil delivery in a vehicle and method for decelerating a vehicle
  • Vehicle, method of controlling oil delivery in a vehicle and method for decelerating a vehicle

Examples

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Embodiment Construction

[0011] with reference to the attached figure 1 and 2 , wherein the same reference numerals refer to the same components in the several figures. The vehicle 10 has a powertrain 12 with a transmission 14 . The transmission 14 has a single motor / generator 16 that receives electrical power from an energy storage device 18 and is used to propel vehicle wheels 20 . Energy storage device 18 may be one or more batteries. Such a vehicle 10 is called a battery electric vehicle because it has no internal combustion engine or other motive force. Wheel 12 can be based on tubes with image 3 The described method 200 is decelerated. Since method 200 is not limited to battery electric vehicles, method 200 may be applied to other types of vehicles having motor / generators that rotate at a speed proportional to wheels 20 . For example, method 200 may be used with a vehicle of the type hybrid electric vehicle having one or more electric motor / generators, whether of the plug-in type, or an e...

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PUM

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Abstract

A vehicle is provided with a controller that implements a method of controlling oil delivery to the vehicle. The method includes increasing at least one of rate of flow of oil and pressure of oil flowing from an oil pump to a motor / generator or to a gearing arrangement that is operatively connected to the vehicle wheels, thereby increasing resistance to rotation of a rotor of the motor / generator or of the gearing arrangement and slowing the vehicle wheels as well as increasing the oil temperature to reduce friction losses. The controlled oil delivery is in response to a vehicle operating condition such as a condition indicative of a desired decrease in torque at the vehicle wheels or oil temperature below a predetermined temperature.

Description

technical field [0001] The invention relates to a method of controlling oil delivery in a vehicle for decelerating the vehicle or for warming the oil, and to a vehicle having a controller implementing the method. Background technique [0002] One goal of electric vehicles, range-extended electric vehicles and hybrid vehicles is to use energy in an efficient manner. For example, instead of dissipating kinetic energy through friction at the vehicle brakes when the vehicle is decelerating, the vehicle can be operated in regenerative braking mode by controlling the motor / engine to operate as a generator to convert some of the kinetic energy into energy storage Electrical energy in a device such as a battery. The stored electrical energy is then used when the motor / generator is used as a motor to provide torque to propel the vehicle. However, such energy conversion by regenerative braking is limited under some vehicle operating conditions. For example, when an energy storage d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K17/10B60R16/08
CPCB60K1/00B60K2001/001B60L1/003B60L7/22B60L11/1862B60L2240/36B60L2240/423B60L2240/461B60L2240/463B60L2240/547B60L2240/549B60L2250/26B60T1/062B60T1/10B60T10/02B60T13/586Y02T10/642Y02T10/7005Y02T10/7044Y02T10/705Y02T10/92B60L58/15Y02T10/64Y02T10/70
Inventor S.S.霍金斯
Owner GM GLOBAL TECH OPERATIONS LLC
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