IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0020293
(2008-01-25)
|
등록번호 |
US-8185279
(2012-05-22)
|
우선권정보 |
FI-20075057 (2007-01-26); FI-20075400 (2007-06-01) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
17 |
초록
▼
A control system (100) for traction transmission has at least two multi capacity motors (M1, M2), which are adapted to rotate a vehicle's wheels (J1, J2) and which multi capacity motor (M1) is arranged to rotate a traction wheel (J2), and the multi capacity motor (M2) is arranged to rotate another t
A control system (100) for traction transmission has at least two multi capacity motors (M1, M2), which are adapted to rotate a vehicle's wheels (J1, J2) and which multi capacity motor (M1) is arranged to rotate a traction wheel (J2), and the multi capacity motor (M2) is arranged to rotate another traction wheel (J1), whereby motor parts (M1a and M2a) of partial rotational volumes of the multi capacity motors (M1, M2) can be connected in series, whereby the anti-slip is on.
대표청구항
▼
1. A traction transmission and control system comprising: a first radial-piston motor operatively connected to drive a first vehicle wheel, the first radial-piston motor comprising:a central shaft with a plurality of piston bodies with a plurality of pistons, one of said plurality of pistons mounted
1. A traction transmission and control system comprising: a first radial-piston motor operatively connected to drive a first vehicle wheel, the first radial-piston motor comprising:a central shaft with a plurality of piston bodies with a plurality of pistons, one of said plurality of pistons mounted in each piston body for radial motion,a plurality of presser wheels, one of said plurality of presser wheels mounted on each piston,a casing surrounding the central shaft, the central shaft and the casing mounted for relative rotation,a cam ring having a wave-shaped surface mounted to the casing so that the presser wheels mounted to the pistons bear on the cam ring wave-shaped surface,wherein the plurality of piston bodies are divided into a first group of piston bodies and a second group of pistons bodies,portions of the central shaft forming a first supply channel which is connected to the first group of piston bodies by a distributer mounted to rotate,portions of the central shaft forming a second supply channel which is connected to the second group of piston bodies by the distributer,a first actuator arranged to open and close the second supply channel with respect to the second set of piston bodies;a second radial-piston motor operatively connected to drive a second vehicle wheel, the second radial-piston motor comprising:a central shaft with a plurality of piston bodies with a plurality of pistons, one of said plurality of pistons mounted in each piston body for radial motion,a plurality of presser wheels, one of said plurality of presser wheels mounted on each second motor piston,a casing surrounding the second motor central shaft, the second motor central shaft and the casing mounted for relative rotation,a cam ring having a wave-shaped surface mounted to the second motor casing so that the second motor presser wheels mounted to the second motor pistons bear on the cam ring wave-shaped face,wherein the plurality of second motor piston bodies are divided into a third group of pistons bodies and a fourth group of piston bodies,portions of the second motor central shaft forming a third supply channel which is connected to the third group of piston bodies by a distributer mounted to rotate,portions of the second motor central shaft forming a fourth supply channel which is connected to the fourth group of piston bodies by the second motor distributer,a second actuator arranged to open and close the fourth supply channel with respect to the fourth set of piston bodies;a series connection between the first group of piston bodies and the third group of piston bodies, the series connection placing the first group of piston bodies in series with the third group of piston bodies, so that the third supply channel is connected to receive hydraulic fluid which has passed through the first supply channel and the first group of piston bodies, so forming an anti-slip connection between the first vehicle wheel and the second vehicle wheel;wherein the first actuator and the second actuator are connected to be controlled according to a pressure existing in the series connection, so that below a selected pressure in the series connection the second group of piston bodies is closed off from the second supply channel and the fourth group of piston bodies is closed off from the fourth supply channel. 2. The traction transmission and control system of claim 1 wherein the first motor central shaft is connected to the first vehicle wheel and the first actuator is mounted in said central shaft, with portions of the central shaft forming a bore having a first end at which is mounted a spring and a second end in actuation pressure receiving relation to the series connection and the first actuator further comprises a spindle mounted for movement in the bore; and wherein the second motor central shaft is connected to the second vehicle wheel and the second actuator is mounted in said second motor central shaft, with portions of the second motor central shaft forming a bore having a first end at which is mounted a spring and a second end in actuation pressure receiving relation to the series connection, and the second actuator further comprises a second spindle mounted for movement in the second motor bore. 3. The traction transmission and control system of claim 1 further comprising a valve positioned in the series connection and arranged to break the series connection between the first group of piston bodies and the third group of piston bodies by connecting the first group of piston bodies to a return line of a pump, and by connecting the third group of piston bodies to a supply line from the pump. 4. The traction transmission and control system of claim 2 further comprising a first shut-off valve arranged to shut off arrival of control pressure to the first actuator so the spring will move the spindle to thus close the first actuator, and a second shut-off valve arranged to shut off arrival of control pressure to the second actuator so the spring will move the spindle to thus close the second actuator. 5. The traction transmission and control system of claim 4, wherein the fourth supply channel for supplying pressurized oil to the fourth group of piston bodies can be closed automatically, and the second actuator comprises a pressure connection to conduct control pressure to the second end of the spindle of the second motor through the second shut-off valve, whereby when the pressure in connection to the fourth supply channel increases in the second end of the spindle to exceed a spring force of the spring the second actuator is opened wherein the second motor is connected for a full volume of pressurized medium to enter the fourth group of piston bodies. 6. A traction transmission and control system comprising: a vehicle having a plurality of wheels;a hydraulic pump;a first multi capacity hydraulic motor having a first rotation volume connected to the pump, and a second rotation volume arranged to be connected to the pump through a first valve which is biased by a biasing element in a closed position, the first motor arranged to drive a first wheel of said plurality of wheels;a second multi capacity hydraulic motor having a third rotation volume connected in series with the first rotation volume so that oil from the pump passes through the first rotation volume and by way of a return line passes through the third rotation volume of the second motor, and the second multi capacity hydraulic motor having a fourth rotation volume arranged to be connected to the pump through a second valve which is biased by a biasing element in a closed position, the second motor arranged to drive a second wheel of said plurality of wheels; andwherein the first valve and the second valve are connected to be held opened by oil pressure in the return line between the first rotation volume and the third rotation volume, and to close when pressure in the return line falls below a selected value. 7. The traction transmission and control system of claim 6 wherein the first multi capacity hydraulic motor and the second multi capacity hydraulic motor are radial piston hydraulic motors, and each of the first rotation volume, the second rotation volume, the third rotation volume, and the fourth rotation volume are formed by a plurality of piston bodies with a plurality of pistons, one of said plurality of pistons mounted in each piston body for radial motion. 8. The traction transmission and control system of claim 7 wherein the first motor has a central shaft which is connected to the first wheel and the first valve is mounted in said central shaft with portions of the central shaft forming a bore having a first end at which is mounted a spring forming the biasing means and the bore having a second end in actuation pressure receiving relation to the return line, and wherein a spindle is mounted for movement in the bore as part of the first valve, and wherein the second motor has a central shaft which is connected to the second wheel and the second valve is mounted in said second motor central shaft, with portions of the second motor central shaft forming a bore having a first end at which is mounted a spring forming the biasing means and having a second end in actuation pressure receiving relation to the return line, and wherein a spindle is mounted for movement in the bore as part of the second valve.
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