JP2016161028A - Vehicular driving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular driving device that can reduce an air amount accumulated in a strainer when the strainer is temporarily exposed to the air and soaked in oil.SOLUTION: The driving device includes: an oil pan 11 in which oil is accumulated; a second strainer 30 disposed in the oil pan 11 and having a suction port 31 for suctioning oil from downward to filter the oil; and an oil pump for suctioning the oil from the oil pan 11 via the second strainer 30. The second strainer 30 is disposed in the oil pan 11 while being inclined so that one side in a vehicle longitudinal direction of an opening surface 31b where the suction port 31 is open is positioned upward relative to the other side.SELECTED DRAWING: Figure 5

Description

  This technology relates to, for example, a vehicle drive device, and more particularly to a vehicle drive device equipped with a strainer that filters oil when an oil pump sucks oil stored in an oil storage section.

  Conventionally, in a vehicle drive device, by connecting a strainer to an oil pump that supplies oil to each element constituting the drive device, the oil pump sucks oil filtered by the strainer, and the drive device is Filtered oil is supplied to each constituent element (for example, Patent Document 1).

JP 2005-291408 A

  In the technique described in Patent Document 1, an oil pump that supplies oil to each element constituting an automatic transmission is connected to a strainer provided at a lower portion of a transmission case that houses the automatic transmission. The oil that has been sucked in from the suction port, filtered, and discharged from the strainer communication port is supplied to each component of the automatic transmission.

  Here, in the technique described in Patent Document 1, the suction port of the strainer is arranged so as to be substantially horizontal toward the lower side of the strainer. In such a configuration, the suction port of the strainer is substantially parallel to the oil surface of the oil when the acceleration of the vehicle is small.

  However, for example, when oil gathers backward due to sudden acceleration or when oil gathers forward due to sudden deceleration or the like, if the oil moves and the strainer is exposed to the air, air may enter the strainer. When air is accumulated in the strainer and oil is going to flow into the strainer from the suction port as the oil level rises, the suction port is blocked by the oil because the suction port is substantially parallel to the oil surface. Therefore, the air in the strainer cannot be discharged, and the air is sucked into the oil pump, which may cause a temporary decrease in hydraulic pressure.

  Therefore, an object of the present invention is to provide a vehicle drive device that can reduce the amount of air accumulated in the strainer when the strainer is temporarily exposed to the air and then immersed in oil. It is.

The drive device (1) for the vehicle (see, for example, FIGS. 1 to 5) includes an oil reservoir (11) in which oil is stored,
A strainer (30) disposed in the oil reservoir (11), having a suction port (31) for sucking oil from below and filtering the oil;
An oil pump (40) for sucking oil from the oil reservoir (11) through the strainer (30),
The strainer (30) is inclined and arranged in the oil reservoir (11) so that one side in the vehicle front-rear direction of the opening surface (31b) where the suction port (31) opens is higher than the other side. It is provided, It is characterized by the above-mentioned.

  Note that the reference numerals in the parentheses are for comparison with the drawings, but this is for convenience of understanding and does not affect the configuration of the claims in any way. Absent.

  According to the drive device for a vehicle, the opening surface of the strainer that is opened is inclined so that one side in the vehicle front-rear direction is higher than the other side, and is arranged in the oil reservoir. ing. As a result, when the strainer is immersed in the oil due to the rise of the oil level of the oil stored in the oil storage part in a state where air is accumulated in the strainer, the oil flows into the strainer from the opening surface of the strainer, The air accumulated in the strainer can be discharged from the opening surface, the amount of air accumulated in the strainer can be reduced, the amount of air sucked into the oil pump is reduced, and the decrease in hydraulic pressure is limited. Can fit inside.

Sectional drawing which shows a part of drive device of the vehicle which concerns on this Embodiment. The side view which shows a part of vehicle drive device which concerns on this Embodiment. Front sectional drawing of the 2nd strainer which concerns on this Embodiment. The perspective view of the 2nd strainer which concerns on this Embodiment. Side surface sectional drawing of the 2nd strainer which concerns on this Embodiment.

  Hereinafter, the present embodiment will be described with reference to FIGS. 1 to 5. Note that the drive device for this vehicle is a drive device suitable for being mounted on, for example, an FR (front engine / rear drive) type vehicle. In the following description, the left side shown in FIG. According to the traveling direction of the vehicle, it is called “front side (front side)” and the right side is called “rear side (rear side)”.

  As shown in FIG. 1, the drive device 1 is roughly connected to an engine 2 as a drive source such as an engine, and a driving force is input from the engine 2 and mounted on a vehicle (vehicle mounted state). The component member is disposed on the housing case 5 containing the input shaft 3 disposed substantially horizontally and the torque converter 4 connected to the input shaft 3, and the shaft 6b facing the front-rear direction of the vehicle. A transmission mechanism that inclines so that the front side of the vehicle of shaft 6b is above the rear side of the vehicle, and changes the speed of rotation output from engine 2 based on the engagement state of friction engagement elements such as a clutch and a brake. 6, a transmission case 7 containing the speed change mechanism 6, and a vehicle rear wheel 60 to which power output from the speed change mechanism 6 is transmitted. A partition member 9 is fixed to the transmission case 7 as a front partition, and the transmission mechanism 6 and the torque converter 4 are separated from each other.

  The partition member 9 is constituted by a unit in which an oil pump body in which the first oil pump 10 is housed and an oil pump cover are integrally fixed. The first oil pump 10 is disposed below the transmission case 7 by rotating a gear structure that is drivingly connected to the rotation shaft 6 a of the transmission mechanism 6, and supplies oil supplied to each element constituting the driving device 1. Oil is sucked from an oil pan 11 as an oil reservoir to be stored through a first strainer 20 and an oil passage 10a described later, and the sucked oil is pressurized. For example, the first oil pump 10 regulates oil as an engagement pressure (operating pressure) of a hydraulic servo of a friction engagement element such as a clutch or a brake constituting the transmission mechanism 6 and supplies the hydraulic oil to each hydraulic servo. Further, the first oil pump 10 adjusts the oil as a lubricating pressure, for example, and supplies the lubricating oil to components such as a gear constituting the transmission mechanism 6.

  The oil pan 11 has a suction port 21 for sucking oil from below and a discharge port 22 communicating with the first oil pump 10 via the oil passage 10a, and filters the oil sucked from the suction port 21. The first strainer 20 is disposed on the vehicle front side. When the first oil pump 10 sucks oil in the oil pan 11 through the first strainer 20, the sucked oil is filtered by a mesh 21 a that is a filtering member provided at the suction port 21.

  In addition, the oil pan 11 is located on the rear side with respect to the center of the vehicle in the front-rear direction and on the rear side of the first strainer 20. And a discharge port 32 communicating with the electric oil pump 40 as a second oil pump driven by the oil passage 50 (see FIG. 2), and as a strainer for filtering the oil sucked from the suction port 31 A second strainer 30 is provided. When the electric oil pump 40 sucks oil in the oil pan 11 through the second strainer 30, the sucked oil is filtered by a mesh 31 a that is a filtering member provided in the suction port 31.

  The electric oil pump 40 is configured to receive an electronic command from the ECU 41 which is a vehicle-mounted control device, suck the oil in the oil pan 11, and supply the oil to each element constituting the transmission mechanism 6. In order to prepare for the start of the vehicle by forming the first forward speed by engaging the clutch of the speed change mechanism 6 when the vehicle is idle stopped and the engine 2 is stopped, an electronic command is received from the ECU 41. The oil in the oil pan 11 is sucked and the engagement pressure (operating pressure) of the hydraulic servo of the clutch is supplied.

  Here, if the electric oil pump 40 sucks air when sucking oil in the oil pan 11, the hydraulic pressure supplied to the hydraulic servo of the clutch decreases (pressure decreases), and the clutch slips. There is a risk of it. The electric oil pump 40 is an auxiliary electric oil pump used mainly when the vehicle is idle stopped, that is, when the first oil pump 10 does not operate. It is composed of an electric oil pump that is not strong against suction. For this reason, if the electric oil pump 40 sucks air exceeding a certain amount of air (allowable air amount) when sucking the oil in the oil pan 11, it takes time to recover the pressure drop. It has a configuration.

  As shown in FIG. 2, the discharge port 32 of the second strainer 30 and the electric oil pump 40 are connected by an oil passage 50. The oil passage 50 is connected to the discharge port 32 and extends from the discharge port 32 toward the upper side of the vehicle. The oil passage 50 is connected to the rise portion 51 and the electric oil pump 40 and flows oil flowing from the rise portion 51. And a bent portion 52 that is bent so as to be guided downward of the vehicle. When the electric oil pump 40 sucks oil, the oil passage 50 is formed so as to flow from the discharge port 32 once to the upper side of the vehicle and then to the lower side of the vehicle and flow into the electric oil pump 40. It is possible to prevent oil from flowing back from the electric oil pump 40 to the oil pan 11 through the oil passage 50 and the second strainer 30 when the electric oil pump 40 is not operated.

  Further, in the oil pan 11, magnets 12 are respectively provided at the lower part of the first strainer 20 and the lower part of the second strainer 30 in order to remove metal powder mixed in the oil sucked from each strainer. It is arranged. By arranging the magnet 12 and each strainer, the driving device 1 can filter impurities mixed in the oil when supplying the oil by each oil pump, and the oil is supplied from each oil pump. In addition, the constituent elements constituting the driving device 1 can be stably operated.

  Next, the details of the second strainer 30 will be described with reference to FIGS. As shown in FIG. 3, the second strainer 30 includes a base portion 33 provided on the upper side of the vehicle, and a side wall portion 34 extending from the base portion 33 toward the lower side of the vehicle. In the side wall portion 34, the mesh 31a described above is attached in the vicinity of the end portion 34a, and the suction port 31 is formed.

  The base portion 33 is provided to connect to the oil pan 11, and extends substantially parallel to the bottom surface 11 a of the oil pan 11, and substantially parallel to the slope 11 b provided on the side surface of the oil pan 11. And a second connection portion 36 that is extended in the direction. As shown in FIG. 4, in the second strainer 30, the first connecting portion 35 is connected to the bottom surface 11a of the oil pan 11 by a bolt 11c, and the second connecting portion 36 is connected to the slope 11b of the oil pan 11 by a bolt 11d. Thus, the oil pan 11 is disposed.

  At this time, as shown in FIGS. 1 and 5, the second strainer 30 is configured so that the opening surface 31 b where the suction port 31 is opened is such that the front side of the vehicle is higher than the rear side when mounted on the vehicle. 1 is disposed in an oil pan 11 so as to be inclined with respect to an input shaft 3 that is disposed substantially horizontally when mounted on a vehicle. Here, in the second strainer 30, the opening surface 31b is inclined by 3 degrees or more (for example, about 5 degrees) with respect to the bottom surface 11a of the oil pan 11, and the vehicle front side of the opening surface 31b is higher than the rear side. It is arranged to become. Further, the flow path 38 through which the oil sucked from the suction port 31 in the second strainer 30 flows to the discharge port 32 has a flow path area on the other surface that is parallel to the opening surface. It is formed to be larger than the road area.

  Next, the operation of the second strainer 30 in the driving device 1 of the vehicle will be described. In the following description, the case where the second strainer 30 is exposed to the air when the oil in the oil pan 11 moves to the front side of the vehicle when the vehicle is decelerated will be described as an example. As long as the second strainer 30 is exposed to the air depending on the state of the vehicle, such as when the vehicle is accelerating or decelerating or traveling on an uphill / downhill road surface, any drive device may be used. The drive device 1 can be applied to exhibit the operation of the second strainer 30 described below.

  As described above, the second strainer 30 is connected to the electric oil pump 40, and when the electric oil pump 40 sucks oil stored in the oil pan 11, the second strainer 30 sucks oil from the suction port 31, It is configured to discharge from the discharge port 32 toward the electric oil pump 40. Further, the oil stored in the oil pan 11 fills from the bottom surface 11a of the oil pan 11 to the height of the oil level L shown in FIG. 5 regardless of the oil temperature when the vehicle is not accelerating or decelerating. So that it is stored.

  Here, for example, when the vehicle starts to decelerate, the oil in the oil pan 11 temporarily starts moving to the front side of the vehicle, and the oil in the second strainer 30 also moves from the suction port 31 as the oil moves. It flows out and moves to the front side of the vehicle. Air flows from the suction port 31 into the second strainer 30 by the oil flowing out from the second strainer 30 and the second strainer 30 being temporarily exposed to the air.

  When the deceleration of the vehicle becomes slow or the vehicle stops, the oil in the oil pan 11 starts moving to the rear side of the vehicle so as to raise the oil level to the oil level L shown in FIG. . As the oil level rises, oil starts to flow into the second strainer 30 from the suction port 31.

  As described above, since the upper side of the second strainer 30 is covered by the base portion 33 and the side surface side is covered by the side wall portion 34, the air in the second strainer 30 is discharged from the upper side or the side surface side. However, the opening surface 31b of the suction port 31 is inclined with respect to the input shaft 3 so that the front side of the vehicle is higher than the rear side. As the two strainer 30 is immersed in the oil, the oil flows into the second strainer 30 from the rear side of the opening surface 31b, and the air in the second strainer 30 is discharged from the front side of the opening surface 31b.

  As described above, the second strainer 30 is disposed to be inclined with respect to the input shaft 3, so that the oil in the oil pan 11 raises the oil level from the state where the air is accumulated in the second strainer 30. When the second strainer 30 is immersed in the oil, the flow into the second strainer 30 is started, and the oil is immediately allowed to flow into the second strainer 30 and the air in the second strainer 30 is discharged. The air and oil in the 2 strainer 30 can be exchanged, and the amount of air accumulated in the second strainer 30 can be reduced. For this reason, the amount of air sucked into the electric oil pump 40 is reduced, and the decrease in hydraulic pressure can be kept within the limit. The second strainer 30 is preferably attached so that the front side of the opening surface 31b does not protrude upward from the oil surface L.

  In addition, when oil is caused to flow into the second strainer 30 as the oil level rises, air remains in the corner portion 37 located on the upper front side of the flow path 38 in the second strainer 30. Here, the amount of air remaining in the corner portion 37 is determined by the angle at which the opening surface 31 b of the second strainer 30 is inclined with respect to the input shaft 3. In the second strainer 30, even when the amount of air remaining in the corner portion 37 is low because the electric oil pump 40 sucks in oil including the air remaining in the corner portion 37 during idle stop. The opening surface 31b is positioned so that the front side is higher than the rear side at an angle such that the amount of air falls within a permissible range that does not cause the clutch of the transmission mechanism 6 to slip due to the low pressure (less than the permissible air amount). Inclined with respect to the input shaft 3, the oil pan 11 is disposed on the vehicle.

(Summary of this embodiment)
As described above, the vehicle drive device (1) of the present embodiment includes an oil reservoir (11) in which oil is stored,
A strainer (30) disposed in the oil reservoir (11), having a suction port (31) for sucking oil from below and filtering the oil;
An oil pump (40) for sucking oil from the oil reservoir (11) through the strainer (30),
The strainer (30) is inclined and arranged in the oil reservoir (11) so that one side in the vehicle front-rear direction of the opening surface (31b) where the suction port (31) opens is higher than the other side. Established.

  For this reason, when the strainer (30) is immersed in the oil by the rise of the oil level of the oil stored in the oil storage part (11) in a state where air is accumulated in the strainer (30), the oil is supplied to the strainer (30). The air accumulated in the strainer (30) can be discharged from the opening surface (31b) while flowing into the strainer (30) from the opening surface (31b) of the air, and the amount of air accumulated in the strainer (30) can be discharged. As a result, the amount of air sucked into the oil pump (40) can be reduced, and the drop in hydraulic pressure can be kept within the limits.

In the vehicle drive device (1), the oil reservoir (11) is an oil pan (11) disposed below the vehicle.
The strainer (30) is disposed in the oil pan (11) with the opening surface (31b) inclined at least 3 degrees with respect to the bottom surface (11a) of the oil pan (11).

  For this reason, by arranging the opening surface (31b) so as to be surely inclined with respect to the bottom surface (11a) of the oil pan (11), the oil is stored in a state where air is accumulated in the strainer (30). When the strainer (30) is immersed in the oil due to the rise of the oil level of the oil stored in the section (11), the oil flows into the strainer (30) from the opening surface (31b) of the strainer (30). The air accumulated in the strainer (30) can be discharged from the opening surface (31b), the amount of air accumulated in the strainer (30) can be reduced, and the air is sucked into the oil pump (40). The amount of air is reduced, and the drop in hydraulic pressure can be kept within the limits.

The drive device (1) for the vehicle includes an input shaft (3) connected to the drive source (2),
The strainer (30) is disposed in the oil reservoir (11) so as to be inclined with respect to the input shaft (3) such that the front side of the opening surface (31b) of the vehicle is above the rear side. The

  For this reason, for example, the vehicle decelerates and the oil moves from the strainer (30) to the front side of the oil reservoir (11), so that air flows into the strainer (30), and the air enters the strainer (30). In the accumulated state, the deceleration of the vehicle becomes gentle, and the oil stored in the oil reservoir (11) starts moving to the rear side of the vehicle, and the oil level of the oil stored in the oil reservoir (11) is increased. When the strainer (30) is soaked in the oil due to the rise, the oil flows into the strainer (30) from the opening surface (31b) of the strainer (30), and in the strainer (30) from the front side of the opening surface (31b). It is possible to discharge the air collected in the strainer (30), reduce the amount of air accumulated in the strainer (30), reduce the amount of air sucked into the oil pump (40), and limit the decrease in hydraulic pressure. Can fit inside

The drive device (1) for the vehicle is provided in the oil reservoir (11) and has a suction port (21) for sucking oil from below, and a first strainer (20) for filtering the oil. When,
A first oil pump (10) connected to the input shaft (3) and sucking oil from the oil reservoir (11) via the first strainer (20) by driving the drive source (2); With
The oil pump (40) is a second oil pump (40) driven by a rotating electrical machine,
The strainer (30) is a second strainer (30) that sucks oil by the second oil pump (40).

  For this reason, for example, when the second oil pump (40) is driven by the rotating electric machine during idling of the vehicle and the oil is supplied from the second oil pump (40), the second strainer ( 30) When the oil is immersed in the oil, the oil flows into the second strainer (30) from the opening surface (31b) of the second strainer (30), and enters the strainer (30) from the front side of the opening surface (31b). In the case where the second oil pump (40) is a small oil pump that is small and not strong against air suction because the air accumulated in the air can be discharged and the amount of air sucked into the second oil pump (40) can be reduced. In addition, the decrease in hydraulic pressure supplied from the second oil pump (40) can be kept within the limits.

Further, the input shaft (3) is disposed so as to face in the longitudinal direction of the vehicle,
The second strainer (30) is disposed on the rear side of the first strainer (20) in the front-rear direction of the vehicle.

  For this reason, for example, the vehicle decelerates and the oil moves from the second strainer (30) to the front side of the oil reservoir (11), whereby air flows into the second strainer (30), and the second strainer (30 30) With the air accumulated in the vehicle, the deceleration of the vehicle becomes gentle, and the oil stored in the oil reservoir (11) starts moving to the rear side of the vehicle and is stored in the oil reservoir (11). When the second strainer (30) is immersed in the oil due to the rise of the oil level of the oil, the oil is allowed to flow into the second strainer (30) from the opening surface (31b) of the second strainer (30). The oil can flow into the second strainer (30) from the rear side of the opening surface (31b) while discharging the air accumulated in the second strainer (30) from the front side of the (31b). (30) Decrease the amount of air accumulated in The effect of the second strainer (30) is that the amount of air sucked into the second oil pump (40) can be reduced and the decrease in hydraulic pressure can be kept within the limit. be able to.

  In the flow path (38) through which the oil sucked from the suction port (31) flows in the strainer (30), the flow path area at the opening face (31b) is another plane parallel to the opening face (31b). It is larger than the flow path area.

  For this reason, when the strainer (30) is immersed in the oil by the rise of the oil level of the oil stored in the oil storage part (11) in a state where air is accumulated in the strainer (30), the oil is supplied to the strainer (30). When the air accumulated in the strainer (30) is discharged from the opening surface (31b) while flowing into the strainer (30) from the opening surface (31b), the discharge of the air accumulated in the strainer (30) is discharged. In the flow path (38), it can be performed from the opening surface (31b) having the largest flow path area than the flow path area in another plane parallel to the opening surface (31b), and accumulated in the strainer (30). The amount of air can be reduced, the amount of air drawn into the oil pump (40) can be reduced, and the drop in hydraulic pressure can be kept within the limits.

  In addition, when the oil level rises from below and is immersed in oil, the strainer (30) has an amount of air remaining inside that reduces the hydraulic pressure of the oil pump (40). The oil storage section (11) is disposed so as to be inclined so that one side of the opening surface (31b) in the vehicle front-rear direction is higher than the other side at an angle that is less than the allowable air amount within the allowable range. Is done.

  For this reason, when the oil pump (40) is driven in a state where air remains in the strainer (30) and the oil is sucked in including the air remaining in the strainer (30), the oil pump (40) One side of the opening surface (31b) of the strainer (30) in the front-rear direction of the vehicle is more than the other side so that the pressure drop due to including the hydraulic air supplied is less than the allowable air amount within the allowable range. Since it is disposed so as to be inclined upward, the amount of air remaining in the strainer (30) can be kept within a range of allowable air amount that can satisfy the function of the oil pump (40).

In the drive device (1) for the vehicle, the drive source (2) is disposed on the front side of the vehicle,
A speed change mechanism (6) having a component disposed on a shaft (6b) facing in the longitudinal direction of the vehicle;
The power output from the speed change mechanism (6) is transmitted to the rear wheel (60) of the vehicle.

  For this reason, the drive device (1) for this vehicle is used in an FR type vehicle including a speed change mechanism (6) in which constituent members are arranged on a shaft (6b) facing the front-rear direction of the vehicle. When the vehicle decelerates and the oil moves from the strainer (30) to the front side of the oil reservoir (11), air flows into the strainer (30), and the air accumulates in the strainer (30). Then, the deceleration of the vehicle becomes gentle and the oil stored in the oil reservoir (11) starts to move to the rear side of the vehicle, and the strainer ( 30) When the oil is immersed in oil, the air accumulated in the strainer (30) from the front side of the opening surface (31b) while allowing the oil to flow into the strainer (30) from the opening surface (31b) of the strainer (30). The strainer (3 ) And accumulated amount of air can be reduced in the amount of air taken into the oil pump (40) is reduced, it is possible to keep the decrease in pressure within limits.

  Further, the transmission mechanism (6) is inclined so that the front side of the vehicle of the shaft (6b) is higher than the rear side of the vehicle when mounted on the vehicle.

  For this reason, when the speed change mechanism (6) is inclined in the vehicle mounted state, the strainer (30) is also inclined and mounted on the vehicle, and the effect of the strainer (30) can be further exhibited. .

  In the drive device 1 for the vehicle, the oil storage unit including the oil pan 11 has been described. However, the oil storage unit may be provided in a case that houses the transmission mechanism. An FF type automatic transmission may be used, and oil may be stored in a lower portion of a case that houses the automatic transmission. In this case, the lower portion of the case that houses the automatic transmission constitutes an oil reservoir. .

  In addition, the second strainer 30 is disposed in the oil pan 11 so as to be inclined so that the front side of the vehicle on the opening surface 31b is higher than the rear side in the vehicle mounted state. In the mounted state, it is only necessary that the opening surface 31b is inclined and disposed on the oil pan 11 so that one side of the opening surface 31b in the front-rear direction of the vehicle is above the other side. Alternatively, the oil pan 11 may be disposed so as to be inclined upward.

  Further, the second strainer 30 has the suction port 31 formed in the vicinity of the lower end portion 34a of the side wall portion 34. However, the present invention is not limited to this, and the second strainer 30 may be configured to suck oil from below the second strainer 30. For example, it may be formed above the end 34a. Even when formed in this way, it is desirable that the second strainer 30 be disposed on the oil pan 11 such that the opening surface 31b is located below the oil surface L.

  In the vehicle drive device 1, the opening side 31 b of the second strainer 30 is disposed on the oil pan 11 so as to be inclined so that the front side of the vehicle is higher than the rear side. The oil pan 11 may be disposed so as to be inclined such that the front side of the opening surface of the strainer 20 where the suction port 21 opens is higher than the rear side. Similarly to the second strainer 30, the first strainer 20 may also be disposed on the oil pan 11 so as to be inclined such that one side of the opening surface in the front-rear direction of the vehicle is higher than the other side.

  Further, in the drive device 1 for this vehicle, the transmission mechanism 6 having the transmission mechanism 6 has been described. However, any transmission mechanism that can change the rotation input from the power of the engine or the like may be used. It may be.

  In the vehicle drive device 1, the drive device 1 is connected only to the engine 2. However, for example, an automatic transmission for a hybrid vehicle equipped with a motor / generator instead of the torque converter 4. There may be.

1 Drive device 2 Drive source (engine)
3 Input shaft 6 Transmission mechanism 6b Shaft 10 First oil pump 11 Oil reservoir (oil pan)
20 First Strainer 21 Suction Port 30 Strainer (Second Strainer)
31 Suction port 31b Opening surface 38 Flow path 40 Oil pump (second oil pump, electric oil pump)
60 Rear wheel

Claims (9)

An oil reservoir for storing oil;
A strainer disposed in the oil reservoir and having a suction port for sucking oil from below and filtering the oil;
An oil pump for sucking oil from the oil reservoir through the strainer,
The strainer is disposed in the oil reservoir so as to incline so that one side in the vehicle front-rear direction of the opening surface where the suction port opens is higher than the other side.
The vehicle drive device characterized by the above-mentioned. The oil reservoir is an oil pan disposed below the vehicle,
The strainer is disposed in the oil pan with the opening surface inclined at least 3 degrees with respect to the bottom surface of the oil pan.
The drive device for vehicles according to claim 1 characterized by things. With an input shaft connected to the drive source,
The strainer is disposed in the oil storage portion so as to be inclined with respect to the input shaft so that the front side of the vehicle on the opening surface is higher than the rear side.
The drive device for vehicles according to claim 1 or 2 characterized by things. A first strainer disposed in the oil reservoir and having a suction port for sucking oil from below and filtering the oil;
A first oil pump that is drivingly connected to the input shaft and sucks oil from the oil reservoir through the first strainer by driving of the drive source;
The oil pump is a second oil pump driven by a rotating electrical machine,
The strainer is a second strainer that sucks oil by the second oil pump.
The drive device for vehicles according to claim 3 characterized by things. The input shaft is disposed so as to face in the longitudinal direction of the vehicle,
The second strainer is disposed on the rear side of the first strainer in the longitudinal direction of the vehicle.
The drive device for vehicles according to claim 4 characterized by things. In the flow path through which the oil sucked from the suction port in the strainer flows, the flow path area in the opening surface is larger than the flow path area in another plane parallel to the opening surface,
The vehicle drive device according to any one of claims 1 to 5, wherein the vehicle drive device is configured as described above. When the oil level rises from below and is immersed in oil when the strainer is in the air, the amount of air remaining in the strainer is an allowable air amount in which the oil pressure of the oil pump falls within an allowable range. At an angle that is less than the angle, and the one side of the opening surface in the front-rear direction of the vehicle is inclined to be higher than the other side, and is disposed in the oil reservoir.
The vehicle drive device according to any one of claims 1 to 6, wherein the vehicle drive device is a vehicle drive device. A drive source is disposed on the front side of the vehicle,
Comprising a speed change mechanism in which components are arranged on a shaft facing in the longitudinal direction of the vehicle;
The power output from the speed change mechanism is transmitted to the rear wheels of the vehicle.
The vehicle drive device according to any one of claims 1 to 7, wherein the drive device is for a vehicle. The speed change mechanism is inclined so that the front side of the vehicle on the shaft is higher than the rear side of the vehicle in a vehicle-mounted state.
The drive device for vehicles according to claim 8 characterized by things.

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