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Device for operating a drive unit of a motor vehicle

A technology of driving device and driving unit, which is applied in the direction of motor vehicle, power device, air pressure power device, etc., and can solve the problems of uncomfortable driving feeling and impact load buffering that cannot be realized in coordination with each other

Active Publication Date: 2013-01-30
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the front axle drive and the rear axle drive have different response characteristics, the shock load damping at the front axle and at the rear axle cannot be realized in harmony with each other, which may result in an uncomfortable driving feeling.

Method used

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  • Device for operating a drive unit of a motor vehicle
  • Device for operating a drive unit of a motor vehicle
  • Device for operating a drive unit of a motor vehicle

Examples

Experimental program
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Embodiment Construction

[0023] exist figure 1 A schematic diagram of the drive system of a hybrid vehicle with a four-wheel drive unit 1 is shown in . On the front axle 3 the engine 5 and the electric machine 7 are connected in a drive train and connected to a transmission 9 . The transmission 9 is drivingly connected to the front axle 3 via a transmission output shaft 11 and a schematically illustrated axle differential 13 . Between the engine 5 and the electric machine 7 is connected a clutch 15 which is disconnected or connected according to the driving situation.

[0024] Arranged on the rear axle 17 of the motor vehicle is a further electric machine 19 which drives the two rear wheels via an axle differential 21 .

[0025] In order to understand the present invention, in figure 1 The front axle drive consisting of the engine 5 and the electric machine 7 and the rear axle drive consisting of the electric machine 19 are shown in . For reasons of clarity, other drive components are not describe...

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PUM

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Abstract

The invention relates to a device for operating a drive unit (1) of a motor vehicle, which device generates setpoint values (M1, M2) for actuating the drive unit (1) on the basis of, in particular, driver-side input parameters (MSumme), which device has a Bonanza-effect damping unit (37) which, in the event of a risk of Bonanza effects, processes the setpoint values (M1, M2) in order to damp the Bonanza effects. A first setpoint value (M1) for a front-axle drive (5, 7) and a second setpoint value (M2) for a rear-axle drive (19) can be generated by means of the device (27). According to the invention, the Bonanza-effect damping unit (37) is divided into a first Bonanza-effect damping filter (43) for processing the first setpoint value (M1) which is directed to the front-axle drive (5, 7) and into a second Bonanza-effect damping filter (44) for processing the second setpoint value (M2) which is directed to the rear-axle drive (19).

Description

technical field [0001] The invention relates to a device for operating a drive unit of a motor vehicle according to the preamble of claim 1 and a method for operating a motor vehicle according to claim 10 . Background technique [0002] Not only in vehicles with an engine, but also in vehicles with only electric drive or partially electric drive, strong torque jumps specified by the driver can lead to vibrations or shock loads in the drive train, which can cause Drivability perceived as uncomfortable. This applies in particular to torque jumps between the operating state without a torque request, ie, the coasting operating state, and the operating state with a torque request, ie, the traction operating state. [0003] Such a device for operating a drive unit of a motor vehicle is known from DE 10 2007 013 253 A1. The device generates setpoint values ​​for controlling the drive unit on the basis of input parameters from the driver. In this case the drive unit consists of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/52B60K6/48B60W30/20
CPCB60L2240/423B60W30/20B60W2710/0666B60K6/48Y02T10/6265Y02T10/642B60K6/52B60W2710/083Y02T10/6221Y02T10/62Y02T10/64B60W2720/403
Inventor R·迈尔A·克鲁斯
Owner AUDI AG
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