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Hydraulic hybrid power system

A hybrid power system and hydraulic technology, applied in hybrid vehicles, pneumatic power devices, power devices, etc., can solve the problem that the motor cannot provide electric energy

Inactive Publication Date: 2016-06-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Disadvantageously, in this arrangement, not only the internal combustion engine but also the electric motor require multiple connection points for the transmission of torque, and the electrical energy cannot be supplied by the electric motor when the internal combustion engine is at rest

Method used

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Examples

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Embodiment Construction

[0036] figure 1 A first embodiment of the hydraulic hybrid system 1 according to the invention is shown, which has an internal combustion engine drive 10, a hydraulic drive 20, a transmission 30, an axle 3, a drive train 31, 32, and an electric machine 50, wherein the electric machine 50 is arranged on drive train 31 between internal combustion engine drive 10 and transmission 30 .

[0037] The internal combustion engine drive mechanism 10 is generally an internal combustion engine 10, and the hydraulic drive mechanism 20 includes a hydrostatic device 20 shown, a valve mechanism and a pressure accumulator not shown. The hydrostatic device 20 is preferably designed as an axial piston machine, wherein the hydrostatic device can be operated not only as a hydraulic pump but also as a hydraulic motor. The hydrostatic device 20 is used, for example, as a hydraulic pump which is driven by the internal combustion engine drive 10 via a transmission 30 . The hydrostatic device 20 then...

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Abstract

The invention relates to a hydraulic hybrid power system (1) provided with an internal combustion engine (10) and a hydraulic (20) driving mechanism, a transmission device (30), an axle (3), transmission systems (31, 32) and a motor (50). In order to optimize running of the hydraulic hybrid power system, the motor (50) is arranged on the transmission systems (31, 32).

Description

technical field [0001] The invention relates to a hydraulic hybrid system according to the preamble of claim 1 . Background technique [0002] An electric machine (for example an electric starter and / or an electric generator) is supplied with electrical energy as a generator, for example by an electric energy storage device (for example a battery) inside the vehicle. The torque required for starting the internal combustion engine drive can be provided by the electric machine by means of electrical energy. The electric machine is also used to supply the vehicle electrical system and / or other electrical consumers. [0003] A disadvantage in hybrid vehicles (the electric motor is driven on the crankshaft via a belt) is that the electric motor is no longer available when the internal combustion engine is switched off (for example at low speeds driven by the secondary drive or during coasting operation). It can be driven by an internal combustion engine and, therefore, the elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/12
CPCB60K6/12B60K6/48B60K2006/4825Y02T10/62
Inventor M·霍恩C·博内K·根纳
Owner ROBERT BOSCH GMBH