IP Library › Granted Patent US 10,703,184
Granted Patent B2
US 10,703,184 · App. 15/512,239 · Granted Jul 7, 2020

Hydraulic system

Inventors: Kristoffer Nilsson (Lund, SE); Henrik Nilsson (Eslöv, SE); Gustaf Lagunoff (Umeå, SE); Mikael Tiainen (Lindome, SE); Johan Nilsson (Huskvarna, SE)
Assignee: BorgWarner Sweden AB
B60K1/00B60K17/10B60K23/04F16H61/0031F16H61/30B60K6/26B60K6/48B60K6/52B60K2001/006B60K2023/043
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,703,184
App. No.
15/512,239
Granted
Jul 7, 2020
Kind
B2
Abstract

A hydraulic system ( 10 ) for a vehicle is provided. The hydraulic system comprises a shifting mechanism ( 20 ) and a pump assembly ( 30 ) configured to provide pressurized fluid to said shifting mechanism ( 20 ), and an electrical motor ( 40 ). The movement of the shifting mechanism ( 20 ) controls a valve function which serves to open a connection from the pump assembly ( 30 ) to the electrical motor ( 40 ).

Claims (18)

1. A hydraulic system for a vehicle, comprising

a shifting mechanism and a pump assembly configured to provide pressurized fluid to actuate said shifting mechanism, and

an electrical motor,

characterized in that

the movement of the shifting mechanism controls a valve function which serves to open a connection from the pump assembly to the electrical motor.

2. The hydraulic system according to claim 1 , wherein the shifting mechanism comprises a moveable shifting piston such that the connection from the pump assembly to the electrical motor is opened only when the shifting piston has reached one of its end positions.

3. The hydraulic system according to claim 2 , further comprising at least one separate valve being responsive to the movement of the shifting piston.

4. The hydraulic system according to claim 3 , wherein the at least one separate valve is integrated in said shifting piston.

5. The hydraulic system according to claim 1 , further comprising a pilot valve arranged between the shifting mechanism and the electrical motor.

6. The hydraulic system according to claim 5 , wherein the pilot valve is configured to open when a shifting piston has reached one of its end positions.

7. The hydraulic system according to claim 1 , wherein the pump assembly comprises a reversible pump.

8. The hydraulic system according to claim 1 , wherein the shifting mechanism comprises a detention device for keeping the shifting mechanism at a desired shift position.

9. The hydraulic system according to claim 8 , wherein the detention device comprises a plurality of distinct shift positions being separated by a ramped surface.

10. A vehicle driveline comprising a hydraulic system comprising

a shifting mechanism and a pump assembly configured to provide pressurized fluid to actuate said shifting mechanism, and

an electrical motor,

characterized in that

the movement of the shifting mechanism controls a valve function which serves to open a connection from the pump assembly to the electrical motor.

Assignments (2)
CHANGE OF NAME Recorded Jun 4, 2019
From: BORGWARNER TORQTRANSFER SYSTEMS AB
To: BORGWARNER SWEDEN AB
Reel/Frame 049364/0256 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 26, 2017
From: NILSSON, KRISTOFFER; NILSSON, HENRIK; LAGUNOFF, GUSTAF; TIAINEN, MIKAEL; NILSSON, JOHAN
To: BORGWARNER TORQTRANSFER SYSTEMS AB
Reel/Frame 043691/0223 →
Priority Claims (2)
SE 1451106 · Sep 19, 2014 · national
SE 1550307 · Mar 13, 2015 · national
Continuity (1)
Related Publication 20170291481A1 · Oct 12, 2017
Cited By (2)
US 12,276,335 US 12,345,326