Road vehicle with auxiliary installation

• US 20070155552A1
• Filed: 05/03/2004
• Published: 07/05/2007
• Est. Priority Date: 05/01/2003
• Status: Abandoned Application

• Current Assignee: Henricus Johannes Antonius Alphonsus Govers
• Original Assignee: Henricus Johannes Antonius Alphonsus Govers
• Inventors: De Cloe, Daniel
• Application Number:
  US10/555,177
• Publication Number:
  US 20070155552A1
• Time in Patent Office: Days
• US Class Current: 474/23
• CPC Class Codes: B60H 1/3222 characterised by the compressor driving arrangements, e.g. clutches, transmissions or multiple drives B60H1/3208, B60H1/3226 take precedence
• CPC Class Codes: B60K 25/02 directly from an engine shaft

Abstract

A drive installation includes a drive source (1), an electrically driven auxiliary installation (7), a generator (6) and a transmission (25) for driving the generator (6) by the drive source (1), which transmission (25) includes a continuously variable transmission (3) with an input shaft (4) that is connected to the drive source (1) and an output shaft (5) that is connected to the generator (6), as well as control elements (8) for adjusting the transmission ratio of the continuously variable transmission (3). At least one sensor is provided for the detection of a characteristic of the drive source (1), the continuously variable transmission (3), the generator (6) and/or the auxiliary installation (7). The sensor is connected to the control elements (8) such that the continuously variable transmission (3) can be controlled on the basis of the characteristic detected by the sensor.

Claims

1. Road vehicle, comprising a drive train with a combustion engine (1), a power generator (6), a transmission (25) for driving the power generator (6) by the combustion engine (1) and an auxiliary installation that can be driven by the power generator. characterised in that the transmission (25) comprises a continuously variable transmission (3) with an input shaft (4) that is connected to the combustion engine (1) and an output shaft (5) that is connected to the power generator (6), control means (8) for adjusting the transmission ratio of the continuously variable transmission (3) and at least one sensor (22-24) for detecting a characteristic of the combustion engine (1), the continuously variable transmission (3), the power generator and/or the auxiliary installation (6), wherein each sensor (22-24) is connected to the control means (8) such that the continuously variable transmission (3) can be controlled on the basis of the characteristic detected by the at least one sensor (22-24).

2. Road vehicle according to claim 1, wherein the control means (8) are designed to maintain an essentially constant speed of revolution at the output shaft (5) of the continuously variable transmission (3).

3. Road vehicle according to claim 1, wherein the continuously variable transmission (3) has a drive pulley (9) that is connected to the input shaft (4), a driven pulley (12) that is connected to the output shaft (5), which pulleys (9,12) each have two discs (10,11 ;

13,14) that enclose a V-shaped groove (19,20) and that have a variable spacing, and a flexible endless member (21) that is accommodated in the V-shaped grooves (19,20) of the pulleys (9,12).

4. Road vehicle according to claim 3, wherein the discs (10,11) of the drive pulley (9) can be moved towards one another and away from one another by means of an actuator (15,17) that is connected to the control means (8).

5. Road vehicle according to claim 4, wherein the actuator comprises an electric motor (17) and a threaded rod (15) connected in a driveable manner thereto, which electric motor (17) is connected to the control means (8).

6. Road vehicle according to claim 3, wherein the discs (13,14) of the driven pulley (12) have pretensioning means (18) for holding said discs (13,14) pressed towards one another under spring pretension.

7. Road vehicle according to claim 3, wherein at least one pulley (9,12) has a sensor (22,23) for determining the speed of revolution thereof.

8. Road vehicle according to claim 3, wherein at least one (9) of the pulleys has a sensor (24) for determining the position of the pulley discs (10,11).

9. Road vehicle according to claim 1, wherein the auxiliary installation is a refrigerating plant.

10. Road vehicle according to claim 1, wherein the auxiliary installation is a sludge gulper.

11. Road vehicle according to claim 1, wherein the auxiliary installation is a concrete mixer.

12. Road vehicle according to claim 1, wherein the auxiliary installation is a fire-fighting installation.

13. Method for the operation of the road vehicle according to one of the preceding claims, comprising the following steps:

—

detection of the power demand for the auxiliary installation, —

lowering the transmission ratio and the speed of revolution of the output shaft of the continuously variable transmission if no demand or a low demand for power is detected, —

detection of a rise in the power demand, —

increasing the transmission ratio of the continuously variable transmission some time after detection of the rise in the power demand.

14. Method according to claim 13, comprising the following steps:

detection of whether the auxiliary installation is switched on or switched off, lowering the transmission ratio and the speed of revolution of the output shaft of the continuously variable transmission on detecting that the auxiliary installation has been switched off.

15. Method according to claim 13, comprising the following steps:

detection of whether the auxiliary installation is switched on or switched off, raising the transmission ratio and the speed of revolution of the output shaft of the continuously variable transmission on detecting that the auxiliary installation has been switched on.

16. Method according to claim 15, comprising the step of setting a constant speed of revolution of the output shaft after increasing the speed of revolution of the output shaft.

17. Method according to claim 15, comprising the step of matching the speed of revolution of the output shaft to the power demand of the auxiliary installation, after increasing the speed of revolution of the output shaft.

18. Method according to claim 13, comprising maintaining the voltage supplied by the power generator at essentially 400 volt.

19. Method according to claim 13, comprising maintaining the frequency of the AC voltage supplied by the power generator at essentially 50 Hz.

20. Method according to claim 13 for operating a refrigerating plant, comprising adjusting the speed of revolution of the output shaft to 1,850 if it has been detected that the auxiliary installation has been switched off.

21. Method according to claim 13, comprising adjusting the speed of revolution of the output shaft to 3,000 if it has been detected that the auxiliary installation has been switched on.

22. Method according to claim 13, comprising the insertion of a delay time, for example of 5 seconds, between the point in time when switching on of the refrigerating plant is detected and the adjustment of the speed of revolution of the output shaft.

24. Method for the operation of the road vehicle according to claim 1, said road vehicle comprising a drive train with a combustion engine (1), a power generator (6), a transmission (25) for driving the power generator (6) by the combustion engine (1) and an auxiliary installation that can be driven by the power generator, wherein the transmission (25) comprises a continuously variable transmission (3) with an input shaft (4) that is connected to the combustion engine (1) and an output shaft (5) that is connected to the power generator (6), control means (8) for adjusting the transmission ratio of the continuously variable transmission (3) and at least one sensor for detecting a 25 characteristic of the auxiliary installation (6), which sensor is connected to the control means (8) such that the continuously variable transmission (3) can be controlled on the basis of the characteristic detected by said sensor, said method comprising the following steps:

detection of the power demand for the auxiliary installation (6),

lowering the transmission ratio and the speed of revolution of the output shaft (5) of the continuously variable transmission (3) if no demand or a low demand for power is detected, detection of a rise in the power demand, increasing the transmission ratio of the continuously variable transmission (3) some time after detection of the rise in the power demand.

23. Road vehicle, comprising a drive train with a combustion engine (1), a power generator (6), a transmission (25) for driving the power generator (6) by the combustion engine (1) and an auxiliary installation that can be driven by the power generator, characterised in that the transmission (25) comprises a continuously variable transmission (3) with an input shaft (4) that is connected to the combustion engine (1) and an output shaft (5) that is connected to the power generator (6), control means (8) for adjusting the transmission ratio of the continuously variable transmission (3) and at least one sensor for detecting a characteristic of the auxiliary installation (6), which sensor is connected to the control means (8) such that the continuously variable transmission (3) can be controlled on the basis of the characteristic detected by said sensor.