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Travel drive and method for controlling the travel drive

A driving device and control unit technology, which is applied in the direction of transmission control, brakes, braking components, etc., and can solve problems such as driver overload

Active Publication Date: 2019-08-27
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The downside is that this is now a source of error according to the operator / driver and does not rule out human error
As a result, the mentioned overloading of the drive or accidents due to too late or too little deceleration can occur

Method used

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  • Travel drive and method for controlling the travel drive
  • Travel drive and method for controlling the travel drive
  • Travel drive and method for controlling the travel drive

Examples

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Embodiment Construction

[0066] according to figure 1 , the hydrostatic traction drive 1 has a first hydrostatic hydraulic machine 2 , which operates as a hydraulic pump in a first line and is driven by a drive 4 designed as a diesel engine. Furthermore, the hydrostatic traction drive 1 has a second hydrostatic hydraulic machine 6 , which is coupled via a drive shaft 8 to a shaft 14 with two wheels 12 and acts as a hydraulic motor in the first line. run. Both hydraulic machines 2 , 6 can be adjusted with respect to their displacement volume via adjustment units 16 , 18 respectively. The first hydraulic machine 2 is fluidically connected to the second hydraulic machine 6 in a closed hydraulic circuit via a first branch line 20 , which is considered to be the preceding line on the other hand, and via a second branch line through which the pressure medium passes. The preceding line flows from the hydraulic machine 2 to the hydraulic machine 6 , said second branch being, on the other hand, a second bran...

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PUM

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Abstract

The invention relates to a hydrostatic traction drive in a closed hydraulic circuit and to a method for controlling the hydrostatic traction drive. A hydrostatic traction drive with two hydraulic machines in a closed hydraulic circuit and a control unit is known, via which the braking torque of the traction drive can be controlled. Furthermore, a method for controlling the braking torque of such a hydrostatic traction drive is disclosed.

Description

technical field [0001] The invention relates to a hydrostatic traction drive in a closed hydraulic circuit and to a method for controlling the hydrostatic traction drive. Background technique [0002] A hydrostatic traction drive of the type described has a hydraulic pump and a hydraulic motor, which are connected to one another in a closed hydraulic circuit via two hydrostatic working lines. The hydraulic pump can be coupled to a drive, for example a diesel engine, and the hydraulic motor can be coupled, for example, to at least one wheel to be driven or at least one shaft to be driven. [0003] There are different methods of using the closed circuit of the traction drive not only for driving but also for hydraulic braking. Especially in slow-moving vehicles, it is known that the hydraulic pump is supported on the drive during overrun mode, so that the braking effect of the drive is thus utilized. However, the maximum possible braking power of the drive limits the achieva...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/40F16H61/4157
CPCF16H61/40F16H61/4157B60T10/04B60T13/585F16H61/42B60T1/08B60T8/17616B60W10/196
Inventor M.贝姆
Owner ROBERT BOSCH GMBH
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