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System and method for changing gear ranges of an electric vehicle

A technology of power train and axle, applied in the field of systems and methods for changing the gear range of electric vehicles, can solve problems such as time-consuming and inefficiency, and achieve the effect of reducing possibility

Pending Publication Date: 2021-03-12
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the driver of the vehicle may consider stopping the vehicle to change the gearbox range to be time consuming and inefficient

Method used

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  • System and method for changing gear ranges of an electric vehicle
  • System and method for changing gear ranges of an electric vehicle
  • System and method for changing gear ranges of an electric vehicle

Examples

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Embodiment Construction

[0011] The following description relates to systems and methods for operating an axle gearbox of a vehicle. The vehicle may be an electric vehicle, and the electric vehicle may include an electric machine coupled to an axle gearbox. The axle gearboxes may be coupled to the differential gear sets of the axles. An axle gearbox may include no friction clutches, but the axle gearbox may include two or more gear ratios. Additionally, the axle gearbox may or may not include a synchronizer for coupling the gears to the shaft of the axle gearbox. Exemplary vehicles and drivelines or powertrains may be figure 1 type shown in . The powertrain may include axles including gearboxes such as figure 2 and image 3 shown. The gearbox can be as Figure 4 to Figure 6 Shown based on Figure 7 and Figure 8 method to operate.

[0012] figure 1 An exemplary vehicle propulsion system 100 is shown for a vehicle 121 . The front of vehicle 121 is indicated at 110 and the rear of vehicle 1...

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PUM

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Abstract

The invention provides a system and a method for changing gear ranges of an electric vehicle. Methods and system are described for changing a gear ratio of an axle gearbox that does not include friction clutches and that may or may not include synchronizers. The axle gearbox may receive propulsive force via an electric machine. The methods and systems permit the axle gearbox to be shifted from a high gear range to a low gear range while a vehicle that includes the axle gearbox is moving.

Description

technical field [0001] The present description generally relates to methods and systems for shifting ranges of axles of electric vehicles. The ranges may be included in a gearbox coupled to the axle. Background technique [0002] A vehicle may include a transmission and a gearbox. The gearbox may include two gear ranges. The first range may be a low range and the second range may be a high range. A high gear range may allow the vehicle to operate at highway speeds and during conditions where the road surface has a higher coefficient of friction. A low gear range may allow the vehicle to achieve improved traction at low vehicle speeds and when the road surface has a low coefficient of friction. The gearbox may be shifted from the high range to the low range, or vice versa, by stopping the vehicle and shifting the gearbox from the high range to the low range. However, the driver of the vehicle may consider stopping the vehicle to change the gearbox range to be time consum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/32F16H61/02F16H63/32F16H63/40
CPCF16H61/32F16H61/0204F16H63/32F16H63/40B60L15/2054H02K7/116F16H3/089B60K2001/001F16H2200/0021F16H2200/0034F16H2003/0811F16H2061/0474F16H2061/0422B60Y2200/91F16H63/502Y02T10/64Y02T10/72F16H2057/02043F16H2057/02034B60W2710/083B60W2710/081
Inventor 保罗·M·穆巴拉克舒布哈姆·迪克西特约瑟夫·杰伊·托雷斯
Owner FORD GLOBAL TECH LLC
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