EP0417820A2
Expired / Lapsed
EP
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A vehicle for urban passenger transport
Assignee: Individual
•
Filing: 1990-07-26
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Granted: —
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Expires: 2010-07-26
Abstract
Abstract The means to which the invention relates is a vehicle for mass urban public transport, powered by electrical energy supplied from the overhead line or from the mains by another form of external supply, characterized in that it has a passenger compartment which is at reduced height above the ground and is virtually clear, the wheels being located fairly near the front and rear ends, these end regions containing the traction motors and the transmission and driving assemblies, and in which at least one electric motor, located in the space between the wheels of one axle, is coupled to the wheels of the axle through a hydrostatic or mechanical transmission.
Inventors
- 👤 Andrea Carlo Doniselli Quattrini
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 21:54
CPC Classifications
B; B60; B60K; B60K7/00; B60K7/0015; B60K17/00; B60K17/04; B60K17/10; B60K17/34; B60K17/354; B60K6/00; B60K6/08; B60K6/12; B62; B62D; B62D47/00; B62D47/02; B60G; B60G2300/00; B60G2300/14; B60K2007/0038; B60K2007/0092; B60Y; B60Y2200/00; B60Y2200/10; B60Y2200/14; B60Y2200/143; B60Y2200/1432; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
85 words
1) A vehicle for urban public transport characterized in that it comprises end axles located near the ends of the vehicle which contains, in these end regions, the motive power, transmission, driving, and auxiliary units, the floor of the passenger compartment being located at a decreased height above the ground in the intermediate space between the axles, the motive power system of the vehicle comprising at least one electric motor supported, with any means of transmission, in the space between the wheels of one axle.
Claim 2
Dependent Claim
85 words
1) A vehicle for urban public transport characterized in that it comprises end axles located near the ends of the vehicle which contains, in these end regions, the motive power, transmission, driving, and auxiliary units, the floor of the passenger compartment being located at a decreased height above the ground in the intermediate space between the axles, the motive power system of the vehicle comprising at least one electric motor supported, with any means of transmission, in the space between the wheels of one axle.
Claim 3
Dependent Claim
33 words
2) A vehicle for urban public transport according to claim 1, characterized in that the said means of transmission between the electric motor or motors and the wheels consist of a hydrostatic transmission.
Claim 4
Dependent Claim
30 words
3) A vehicle for urban public transport according to claim 1, characterized in that the said means of transmission between the electric motor or motors and the wheels are mechanical.
Claim 5
Dependent Claim
73 words
4) A vehicle for urban public transport according to claims 1 and 2, characterized in that the said hydrostatic transmission comprises at least one pump driven by an electric motor, and at least one hydrostatic motor coupled in rotation to the wheels of one axle, supplied by the pump, with the interposition of a distributor assembly, at least one of the hydraulic motor and the pump being of the variable cylinder capacity type.
Claim 6
Dependent Claim
27 words
5) A vehicle for urban public transport according to claims 1 and 2, characterized in that the wheels of the vehicle are separately driven by hydrostatic motors.
Claim 7
Dependent Claim
49 words
6) A vehicle for urban public transport according to claims 1, 2 and 5, characterized in that the hydrostatic motors are mounted coaxially with their respective wheels and integrally with the supporting assemblies of the wheels, and are coupled in rotation to the wheels through an epicyclic gear assembly.
Claim 8
Dependent Claim
48 words
7) A vehicle for urban public transport according to claims 1, 2 and 5, characterized in that the hydrostatic motors are mounted integrally with the supporting assemblies of their respective wheels, and are coupled in rotation to the wheels through a gear assembly with external cylindrical toothed wheels.
Claim 9
Dependent Claim
50 words
8) A vehicle for urban public transport according to claims 1, 2 and 5, characterized in that the hydrostatic motors are mounted integrally with the supporting assemblies of their respective wheels, and are coupled in rotation to the wheels through a gear assembly with conical toothed wheels with converging axes.
Claim 10
Dependent Claim
51 words
9) A vehicle for urban public transport according to claims 1, 2 and 5, characterized in that the hydrostatic motors are mounted integrally with the supporting assemblies of their respective wheels, and are coupled in rotation to the wheels through a gear assembly with toothed wheels with axes in different planes.
Claim 11
Dependent Claim
54 words
10) A vehicle for urban public transport according to claims 1, 2 and 5, characterized in that the hydrostatic motors are mounted integrally with the supporting assemblies of their respective wheels, and are coupled in rotation to the wheels through a combination of gear assemblies according to one ore more of the previous claims.
Claim 12
Dependent Claim
26 words
11) A vehicle for urban public transport according to one or more of the previous claims, characterized in that it has at least one rigid axle.
Claim 13
Dependent Claim
28 words
12) A vehicle for urban public transport according to one or more of the previous claims, characterized in that it has at least one axle with independent wheels.
Claim 14
Dependent Claim
38 words
13) A vehicle for urban public transport according to one or more of the previous claims, characterized in that the wheels of the end axles are all steering, with different steering angles in accordance with the desired paths.
Claim 15
Dependent Claim
71 words
14) A vehicle for urban public transport according to one or more of the previous claims, characterized in that the hydrostatic transmission comprises at least one pressurized accumulator which may be supplied with hydraulic fluid by the hydrostatic motors in the braking phase through the distributor assembly, through which they can subsequently supply the hydrostatic motors as an alternative to or in parallel with the pump driven by the traction motor.
Claim 16
Dependent Claim
32 words
15) A vehicle for urban public transport according to one or more of the previous claims, characterized in that the electric traction motor or motors are supplied through an electrical contact line.
Claim 17
Dependent Claim
89 words
16) A vehicle for urban public transport according to one or more of the previous claims, characterized in that the electrical traction motor or motors are put into operation only during stops, to drive one or more hydrostatic pumps, the electrical energy being supplied by contact of the movable pole provided on the vehicle with a suitable fixed cross member provided with conducting elements and located at a point corresponding to the vehicle stop, the energy of the accumulators being used during travel from one stop to the next.
Claim 18
Dependent Claim
86 words
17) A vehicle for urban public transport according to one or more of the previous claims, characterized in that the hydrostatic transmission comprises an electronic microprocessor control unit which controls the distributor assembly of the hydrostatic transmission, the electrical traction motor or motors, and the machines (hydrostatic pumps and motors) with variable cylinder capacity, and which is capable of maintaining optimal operating conditions for the propulsion system comprising the electrical traction motors and the hydrostatic pumps and motors in any conditions of operation of the vehicle.
Claim 19
Dependent Claim
49 words
18) A vehicle for urban public transport according to one or more of the previous claims, characterized in that it is provided with doors with two leaves of which one is slidable outside the side of the body and the other inside the body in a suitable protective compartment.
References Cited (Backward Citations)
No citation records indexed.
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