RAIL VEHICLE WITH INDIVIDUAL WHEEL DRIVES

• US 20110067596A1
• Filed: 09/23/2010
• Published: 03/24/2011
• Est. Priority Date: 09/24/2009
• Status: Active Grant

• Current Assignee: Siemens Mobility GmbH (Siemens AG)
• Original Assignee: Siemens AG
• Inventors: JÖCKEL, ANDREAS
• Granted Patent: US 8,622,002 B2
• Time in Patent Office: Days
• US Class Current: 105/34.1
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2220/46 Wheel motors, i.e. motor connected to only one wheel
• CPC Class Codes: B60L 9/16 using ac induction motors
• CPC Class Codes: B61C 15/14 controlling distribution of tractive effort between driving wheels
• CPC Class Codes: B61F 3/16 with a separate axle for each wheel
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility

Abstract

A rail vehicle has a powered bogie, wherein the powered bogie has driven wheels. Each driven wheel of the powered bogie can be driven by an electric machine, with a power converter being assigned to the electric machine. As a result, a separate power converter is assigned to each driven wheel.

Claims

1. A rail vehicle, comprising:

a powered bogie having wheels;

plural electric machines for driving the wheels of the bogie in one-to-one correspondence; and

plural power converters operably connected to the electric machines in one-to-one correspondence so as to assign to each of the wheels a separate one of the power converters.

2. The rail vehicle of claim 1, further comprising plural control systems operably connected to the wheels in one-to-one correspondence so as to assign to each of the electric machines a separate one of the control systems.

3. The rail vehicle of claim 2, wherein the control systems use a common synchronizing clock.

4. The rail vehicle of claim 2, further comprising a system bus, said control systems having a data-transmitting connection to the system bus and are synchronized on the system bus.

5. The rail vehicle of claim 1, wherein the bogie has two wheels positioned opposite one another and assigned to different rails, and further comprising a position signal generator or a signal generator assigned to the opposing wheels and/or to their assigned electric machines and generating an output signal in response to an actual position of the bogie.

6. The rail vehicle of claim 1, wherein the bogie has two wheels positioned opposite one another and assigned to different rails, and further comprising a position controller to control a movement of at least one of the two wheels.

7. The rail of claim 2, further comprising a lateral guidance device linked by data connection to the control systems and coordinating the control systems, wherein at least one of the following coordination functions is achievable:

angular coupling of at least between two wheels;

torque control of at least one wheel;

route-data-dependent control of at least one wheel; and

control of at least one wheel as a function of a position of the rail vehicle.

8. The rail vehicle of claim 2, further comprising a man/machine interface to influence simultaneously the control systems, each individually per wheel and/or jointly for a plurality of wheels.

9. The rail vehicle of claim 1, further comprising a common electric intermediate circuit, wherein the wheels of the bogie and their power converters are operably connected to the common electric intermediate circuit.

10. The rail vehicle of claim 1, wherein the common electric intermediate circuit has an intermediate circuit capacitor as an energy buffer.

11. The rail vehicle of claim 7, wherein the lateral guidance device is constructed to process route data and/or global position data.

12. The rail vehicle of claim 1, further comprising a track bend traveling mode operably connected to the wheels for causing the bogie to negotiate a bend in the track, and a straight route section traveling mode operably connected to the wheels for causing for the bogie to move on a straight section.

13. The rail vehicle of claim 12, further comprising a traveling mode changeover device activatable to change between the track bend traveling mode and the straight route section traveling mode.

14. The rail vehicle of claim 13, wherein the traveling mode changeover device is constructed to effect a changeover between the traveling modes as a function of route data and/or a global vehicle position.

15. The rail vehicle of claim 13, wherein the traveling mode changeover device is constructed to effect a changeover between the traveling modes in dependence on route data and/or global position data, wherein a position of the wheels with respect to one another is stored in the rail vehicle.

16. The rail vehicle of claim 12, wherein a torque control of a wheel is activated during a changeover between the traveling modes.