Method for adjusting a cranking operating state, controller, drive assembly and vehicle

A technology of operating state and drive components, applied in the direction of control drive, electric vehicles, control devices, etc., can solve the problems of reducing actuation-/clamping force, expensive, no solution, etc., and achieve the effect of simple design

Active Publication Date: 2020-09-15
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] One solution may consist in limiting the creep moment, so that the actuation- / clamping force is thus reduced
However, creeping operation on slopes or when overcoming obstacles may therefore be limited, especially for heavy vehicles
[0012] The additional use of the separating clutch for securing the run-away / clamp protection shown above in connection with the internal combustion engine is structurally complex and expensive
Known methods for regulating the creeping behavior also do not provide a solution for achieving effective jamming and / or running protection with full creeping functionality (Anfahrschutz)

Method used

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  • Method for adjusting a cranking operating state, controller, drive assembly and vehicle
  • Method for adjusting a cranking operating state, controller, drive assembly and vehicle
  • Method for adjusting a cranking operating state, controller, drive assembly and vehicle

Examples

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Embodiment Construction

[0061] here, figure 1 An exemplary embodiment of a vehicle 100 according to the invention is shown with a drive unit 1 according to the invention which is suitable for carrying out the method according to the invention.

[0062] The stylized representation of a vehicle 100 comprises a drive unit 1 according to the invention with an electric drive 2, which is here configured as an electric motor acting on a drive shaft 3, which drives the two drive wheels here forming drive wheels. front wheel 4. Optionally, the electric drive 2 is coupled to the drive shaft 3 via a disconnect clutch 12 . Each of the drive wheels 4 includes a brake assembly 5 and a rotational speed sensor 6 . The rear wheel 7 is also provided with a brake assembly 5 . A corresponding rotational speed sensor 6 (not shown) can also be provided here for each wheel 7 .

[0063] The electric drive 2 , the brake assembly 5 and the rotational speed sensor(s) 6 are arranged via a signal line 8 with a wheel controll...

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PUM

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Abstract

The invention relates to a method for adjusting a creep operating state, a controller, a drive assembly and a vehicle. The invention relates to a method for controlling a creep operating state (BKr) of a vehicle (100) having an electric drive (1), comprising: starting the creep operating state (BKr); establishing a wheel torque (MR) up to a creep torque (MKr) for establishing and maintaining a creep speed (vKr); detecting a wheel stop signal (SSt); checking an interrupt criterion (KAbb) for interrupting the creep operating state (BKr); wheel torque (MR) is eliminated by deactivating the electric drive (1) and ending the creep operating state (BKr) in the presence of an interruption criterion (KAbb). The invention further relates to a control device (9), to a drive assembly (1) and to a vehicle (100), each of which is suitable for carrying out the method according to the invention.

Description

technical field [0001] The invention relates to a method for regulating the creep behavior (Kriechbetriebszustand) (also called creep functionality) of a vehicle with an electric drive, which has the following steps: starting the creep behavior, building up the wheel torque until the And the creep moment (Kriechmoment) to maintain the creep speed. The invention furthermore relates to a control unit, a drive unit and a vehicle, which are respectively designed and designed to carry out such a method. Background technique [0002] Modern vehicles with internal combustion engine drives and automatic clutch packs have creep functionality that enables the vehicle to be moved without manipulation of the accelerator pedal. Here, when the brake pedal actuated to stop the vehicle is released, a wheel torque or creep torque is built up via a hydraulically powered torque converter or via controlled engagement of a friction clutch. Make the vehicle move at a very low speed. Such creep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/18B60W10/08B60L15/20B60K1/00
CPCB60W30/18063B60W10/08B60L15/20B60K1/00B60W2520/28B60W2520/30B60L3/0007B60L15/2063B60L2260/22B60L2240/423Y02T10/64Y02T10/72
Inventor C.沙伊贝尔L.克佩尔T.泽尔纳M.菲库斯
Owner VOLKSWAGEN AG
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