Electricity: motive power systems – Braking – Dynamic braking
Patent
1998-10-27
2000-08-29
Ro, Bentsu
Electricity: motive power systems
Braking
Dynamic braking
180 653, 180 651, B60K 100
Patent
active
061113751
DESCRIPTION:
BRIEF SUMMARY
The present invention relates generally to the field of transportation and, more particularly, the utilization of the dynamic actions, developed during the running of any vehicle and caused by the dynamic interactions between the latter and the unevenness of the ground on which the vehicle is running, in order to regenerate the dissipated energy and to store it for later use.
The energy of the dynamic actions caused by the relative movement between vehicle and ground is currently dissipated by various forms of shock absorbers so as not to upset the vehicle attitude.
The existing actuators of the vehicle shock absorbers utilize substantially mechanical absorber means (springs) or hydraulic means (pistons) or mixed systems with air cushion.
It is already known, from EP 363158, an apparatus for regenerating energy from the dynamic interactions between the ground and a running vehicle consisting of linear motor for transforming the energy of the movement of the suspension or shock absorber of the vehicle into electrical energy which can be stored in batteries located in the vehicle. In this apparatus are used permanent magnets of alternate polarity, but these devices are usually characterized by problems of efficiency.
The present invention overcomes the problems of the prior art providing the use of a shock absorber which transforms the currently dissipated energy of the dynamic interactions between vehicle and ground into an useful form of energy which can be stored even with the unavoidable loss due to the efficiency of the transformation.
More particularly, in the present invention it is provided the use of coils both in the stationary and in the moving parts of the suspension.
In view of the very wide field of application of such a device and the infinite range of existing vehicles it is evident that an apparatus regenerating energy and carrying out the same technical solution for all the types of vehicles is not conceivable because, among others, the specific vehicle constructions could in some case require excessively complicated, expensive transducers.
The invention will be better understood from the following detailed description of a preferred embodiment of the apparatus for regenerating and transforming energy, for example, into electric energy, said embodiment being capable of covering a considerable portion of the range of existing vehicles.
Such embodiment is schematically shown only by way of example in the accompanying drawings. In the drawings:
FIG. 1 shows the diagram of a preferred embodiment of the invention
FIGS. 2 and 2a show a second embodiment of the present invention.
FIG. 3 shows a third embodiment of the present invention.
With reference to FIG. 1, the apparatus consists of a suspension including a electrical linear generator with the moving part 1 (equivalent to the rotor) rigidly connected to the not suspended parts (wheels) which follow the unevenness of the ground on which the vehicle is running, and with the stationary part 2 (stator) connected to the vehicle frame or body S.
The movement transmitted from the wheels to the moving part 1 produces an electromotive force in the stationary part or stator 2 which in turn generates a current through a connecting cable 5 at output connector 3, which current is fed to a diod rectifier 6 and then to a lead battery 7 of capacity adapted to the used generator.
In the described embodiment there is provided a covering bellows 4 capable of protecting the inside of moving part 1 and stationary part 2 from the environmental agents which could come between and damage the moving and the stationary parts. Particularly, said bellows 4 has one end connected to the casing of the stationary part and the other end is connected to that end of the moving part 1 which is not engaged in the generation of the electromotive force.
Connecting cable 5 feeding the excitation current of the moving part 1 to the battery 7 of the vehicle through connector 3 and rectifier 6 is located within such protection bellows 4 having such a length as to cover the whole strok
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Leykin Rita
Ro Bentsu
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