US 2021/0310526 A1Published application

Control method for transmission of electric vehicle

AssigneesHyundai Motor Company, Kia Motors Corporation

InventorJong Yun PARK

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Abstract

A control method of a transmission of an electric vehicle provided with a transmission having a sleeve gear having an inclined chamfer on a first side of the sleeve gear and a flat chamfer on a second side of the sleeve gear, may include measuring a maximum movable stroke of a sleeve having the sleeve gear by moving the sleeve axially to both sides by a controller; determining a reference range to which the measured maximum stroke pertains from predetermined reference ranges by the controller; and determining and setting a neutral position of the sleeve using a predetermined determination method, depending on the determined reference range by the controller.

Claims11

Dependent claims

A method of controlling a transmission of a vehicle mounted with the transmission and having a sleeve gear having an inclined chamfer on a first side of the sleeve gear and a flat chamfer on a second side of the sleeve gear, the method comprising:

measuring, by a controller, a maximum movable stroke of a sleeve having the sleeve gear by moving the sleeve axially to a first side and a second side of the sleeve;
determining, by the controller, a reference range to which the measured maximum stroke pertains from at least a predetermined reference range;
and
determining and setting, by the controller, a neutral position of the sleeve, depending on the determined reference range;
and
controlling, by the controller, the transmission according to the set neutral position of the sleeve.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/993,726Filed 14 Aug 2020
Priority: KR 10-2020-00414276 Apr 2020
Published: 7 Oct 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification26 codes

F16D 48/06
External control of clutches: control by electric or electronic means, e.g. of fluid pressure
B60K 1/00
Arrangement or mounting of electrical propulsion units
B60K 17/02
Arrangement or mounting of transmissions in vehicles: characterised by arrangement, location, or kind of clutch
B60K 17/06
Characterised by arrangement, location or kind of gearing: of change-speed gearing

Family

US 11,448,272 B2Related patent
US 2021/0310526 A1This patent

From the US filing history. Foreign family members aren’t listed.

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