Snow groomer

• US 20120110878A1
• Filed: 11/01/2011
• Published: 05/10/2012
• Est. Priority Date: 11/05/2010
• Status: Active Grant

• Current Assignee: Kaessbohrer Gelaendefahrzeug AG
• Original Assignee: Kaessbohrer Gelaendefahrzeug AG
• Inventors: MAYER, Andreas, LUIGART, Christof, BETZ, Peter, KUHN, Michael
• Granted Patent: US 8,800,700 B2
• Time in Patent Office: Days
• US Class Current: 37/219
• CPC Class Codes: B60K 17/12 of electric gearing of electrically-actuated clutches B60K17/02
• CPC Class Codes: B60K 6/26 characterised by the motors or the generators
• CPC Class Codes: B60K 6/34 characterised by the absence of energy storing means
• CPC Class Codes: B60K 6/46 Series type
• CPC Class Codes: B60L 2200/40 Working vehicles
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2220/14 Synchronous machines
• CPC Class Codes: B60L 2240/441 Speed
• CPC Class Codes: B60L 3/0061 relating to electrical machines
• CPC Class Codes: B60L 3/0092 with use of redundant elements for safety purposes
• CPC Class Codes: B60L 50/13 using AC generators and AC motors
• CPC Class Codes: B60L 50/61 by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• CPC Class Codes: B60L 7/20 Braking by supplying regenerated power to the prime mover of vehicles comprising engine-driven generators
• CPC Class Codes: B60W 10/30 including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: B60W 50/023 Avoiding failures by using redundant parts
• CPC Class Codes: B60Y 2200/25 Track vehicles
• CPC Class Codes: B60Y 2200/411 Bulldozers, Graders
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility

Abstract

Snow groomer for treating snow-covered surfaces, the snow groomer having an internal combustion engine and least one generator connected via power electronics to at least one electric motor for a rotational functional drive of the snow groomer, wherein two generators connected in parallel between the internal combustion engine and the power electronics.

Claims

1. Snow groomer having an internal combustion engine and having at least one generator which is connected via power electronics to at least one electric motor for a rotational functional drive of the snow groomer, wherein two generators which are connected in parallel are provided between the internal combustion engine and the power electronics.

2. Snow groomer according to claim 1, wherein a transfer transmission, to which the two generators are connected on the output side, is assigned to the internal combustion engine.

3. Snow groomer according to claim 1, wherein traction motors for a chain drive, a cutting shaft drive and/or a winch drive are provided as functional drives.

4. Snow groomer according to claim 1, wherein the electric motors of the functional drives are formed by synchronous motors.

5. Snow groomer according to claim 1, wherein the power electronics are embodied as a direct current intermediate circuit.

6. Snow groomer according to claim 1, wherein current rectifiers are assigned to the generators.

7. Snow groomer according to claim 1, wherein an electric switching element, which can electrically disconnect the generator from the power electronics, is provided for each generator.

8. Snow groomer according to claim 7, wherein an electronic controller is provided which activates the switching element as a function of functional monitoring of the generator for disconnection of the generator from the power electronics.