Control arrangement for vehicles having a hydrostatic auxiliary drive
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 13, 2022
Grant Date -
Jan 10, 2013
app pub date -
Jun 5, 2009
filing date -
Jun 7, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention relates to a control arrangement for vehicles having a hydrostatic auxiliary drive for one or more axles, in particular for motor graders, having a drive engine, driven rear wheels coupled to the drive engine, further wheels which can be activated by associated hydraulic motors and can be operated by a hydraulic pump coupled to the drive engine and which has an adjustable feed volume, wherein each wheel is connected to a hydraulic motor without a clutch. The hydraulic pump and the hydraulic motors can be activated electrically and adjusted in a continuously variable fashion and the hydraulic pump is connected directly, without valves, to the hydraulic motors in parallel by hydraulic lines. The control device controls the respective displacement volume of the hydraulic motors only as a function of the rotational speed signals of the sensors.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2009 Application Filing Year
- B60K Class
- 818 Applications Filed
- 527 Patents Issued To-Date
- 64.43 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B60K Class
- 55.59 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 13, 2026 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 13, 2030 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 13, 2034 |
