Mechanical energy accumulator for a vehicle

An accumulator and mechanical technology, applied in the direction of controlling mechanical energy, mechanical equipment, vehicle components, etc., can solve the problem that the regeneration mechanism cannot cause satisfactory energy regeneration and energy storage, and achieve the effect of increasing the moment of inertia

Inactive Publication Date: 2013-08-14
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is known that conventional regeneration mechanisms do not lead to satisfactory energy regeneration and energy storage at least in some driving or braking situations.

Method used

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  • Mechanical energy accumulator for a vehicle
  • Mechanical energy accumulator for a vehicle
  • Mechanical energy accumulator for a vehicle

Examples

Experimental program
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Embodiment Construction

[0039] figure 1 and figure 2 The mechanical energy store according to the invention is shown in side view and in section. Here, the accumulator according to the invention can be used in electric or hybrid vehicles, as it is schematically shown in Figure 4 as shown in.

[0040] The energy store 1 has a planetary gear 3 . The planetary gear 3 has a central sun gear 5 , an external gear 7 and three planetary gears 9 arranged between the sun gear 5 and the external gear 7 . On the outer circumference of the sun gear 5 and on the inner circumference of the external gear 7, teeth are respectively provided (in figure 1 not shown in ), into which the teeth of the planetary gears 9 mesh, so that the rotation of the sun gear 5 or the outer gear 7 causes a corresponding rotation and / or movement of the planetary gears 9 . The sun gear 5 is connected to the motor 11 of the vehicle 13 (see Figure 4 ) cannot be connected relative to rotation. The external gear 7 is non-rotatably co...

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Abstract

A mechanical energy accumulator (1) and an electric or hybrid vehicle provided with an energy accumulator of this type are proposed. The energy accumulator (1) has a planetary gear train (3). The sun wheel (5) thereof is connected to an electric motor of the vehicle. An outer wheel (7) of the planetary gear train (3) is connected to a wheel drive of the vehicle. The planet wheels (9) are connected rigidly to each other via a planet wheel linkage (17). According to the invention, in order to increase the flywheel mass thereof, the planet wheels (9) have "flywheel mass regions" (23) which have a larger diameter than a gearwheel region (21) arranged between the sun wheel (5) and the outer wheel (7). Owing to said flywheel mass regions (23), a considerable quantity of rotation energy can be stored in the rotating planet wheels (3) with the aid of the planetary gear train (3). Such a kinetic accumulation of energy can improve a degree of recuperation or the starting characteristics of an electric vehicle.

Description

technical field [0001] The invention relates to a mechanical energy store which can be used in a vehicle, in particular an electric or hybrid vehicle. Furthermore, the invention relates to a vehicle having such a mechanical energy store. Background technique [0002] Electric and hybrid vehicles are at least partially driven by electric motors, which can also be operated in generator mode. In order to reduce the overall energy consumption, it is desirable here to regenerate kinetic energy when braking the vehicle, that is to say recover kinetic energy and store it for later use. [0003] It is conventionally common to operate the electric machine in generator mode during the braking process in order to be able to convert kinetic energy into electrical energy and then store it in the vehicle battery. Independently of such electrical energy regeneration and energy storage, vehicles having a flywheel mechanism in which kinetic energy released upon braking is mechanically stor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/10B60K6/28B60K6/30
CPCH02K7/025Y02T10/6204B60K6/105B60K6/30B60K6/28Y02T10/6282F16H1/28Y02T10/62
Inventor J.海泽A.蒂芬巴赫T.施奈德特恩斯
Owner ROBERT BOSCH GMBH
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