JP4363106B2 - Auxiliary equipment arrangement structure in vehicle engine room - Google Patents

Description

  The present invention relates to an accessory arrangement structure in a vehicle engine room in which a vehicle compartment and an engine room are partitioned by a dash panel.

Conventionally, as an auxiliary machine arrangement structure in the vehicle engine room of the above-described example, there is the following structure (see Patent Document 1).
That is, as shown in FIG. 20, a vehicle room 201 and an engine room 203 partitioned by a dash panel 202 are provided in front of the vehicle room 201, and the engine vertically disposed in the engine room 203 described above. This is a general structure of an FR (front engine rear wheel drive) type configured to drive rear wheels (not shown) by 204.

  The above-described engine 204 is disposed at a position substantially corresponding to the axle (not shown) of the front wheel 205, and a radiator 206 and a cooler condenser 207 as auxiliary machines are disposed in front of the engine 204 and outside the wheel base. Yes.

  That is, in the structure shown in FIG. 20, the engine 204 and the radiator 206 as heavy objects are disposed at positions away from the center of the vehicle forward, so that the yaw moment of inertia is relatively large, and steering stability and vehicle There was a problem that the motor performance deteriorated.

  On the other hand, a vehicle air conditioner (see Patent Document 2) in which an auto air conditioner is arranged at the rear of the dash panel on the front side of the vehicle and a rear cooler unit is arranged on the rear side of the vehicle has already been invented. As long as it is a general air conditioner, there has been an obstacle to the backward layout of the engine and auxiliary equipment.

JP-A-6-239147 JP-A-5-193337

In view of this, the present invention provides a drive device as a heavy object and a heat by disposing a drive device in the recess of the dash panel and disposing a heat exchanger between the front end of the drive device and the axle of the front wheel. The exchanger can be disposed backward to bring it closer to the center of the vehicle, the yaw moment of inertia can be reduced, the steering stability and the motion performance of the vehicle can be improved , and the suspension for supporting the front wheels The heat exchanger is supported by a suspension cross member that is provided and supports the suspension, so that the existing member (suspension cross member) can be used effectively to support the heat exchanger, and the suspension cross member described above. eyes because its rigidity is high, providing the auxiliary arrangement structure in a vehicle engine room, which can ensure high support rigidity of the heat exchanger To.

An auxiliary equipment arrangement structure in a vehicle engine room according to the present invention is an auxiliary equipment arrangement structure in a vehicle engine room in which a vehicle compartment and an engine room are partitioned by a dash panel, and the front and rear formed in the dash panel. A driving device is disposed in the directional recess, a heat exchanger is disposed between the front end of the driving device and the axle of the front wheel, and a suspension for supporting the front wheel is provided to support the suspension. The heat exchanger is supported on a suspension cross member .

The above-mentioned driving device is an engine or an engine and an ISG unit (an integrated starter generator unit, which is a unit that serves as both a starter and a generator, and is simply referred to as an ISG unit hereinafter). The above heat exchanger may be set to a radiator or a cooling unit.
According to the above configuration, the drive device as a heavy object is disposed in the upper concave portion of the dash panel, and the heat exchanger is disposed between the front end of the drive device and the axle of the front wheel, that is, in the wheel base. The heavy load of the drive unit and the heat exchanger can be disposed backward so as to approach the center of the vehicle. As a result, the yaw moment of inertia can be reduced, and the steering stability and the vehicle performance can be improved. it can.

In addition , since the suspension for supporting the front wheels is provided and the heat exchanger is supported by the suspension cross member for supporting the suspension , the existing member (suspension cross member) is effectively used for heat exchange. In addition to the support of the heat exchanger, the above-described suspension cross member has a high rigidity, so that a high support rigidity of the heat exchanger can be ensured.

  In one embodiment of the present invention, an air cleaner is disposed above the heat exchanger, a recessed portion is provided at a position corresponding to the heat exchanger on the lower surface of the air cleaner, and heat is exchanged in the recessed portion. The upper end of the vessel is disposed.

  According to the above configuration, the capacity (or capacity) of the air cleaner can be appropriately secured while reducing the vehicle height, and the air cleaner as a heavy object is possible by providing the above-described recessed portion. Can be placed backwards.

In one embodiment of the present invention, the front portion of the driving device is mounted on the suspension cross member.
According to the above configuration, by mounting the front portion of the driving device on the suspension cross member, it is possible to prevent the driving device from being pitched.

In one embodiment of the present invention, the suspension cross member includes a substantially U-shaped suspension cross main portion in plan view, and a transverse member that is integrated with the suspension cross main portion and extends in the vehicle width direction. The front part is mounted on a transverse member.
According to the above configuration, the front part of the drive device can be mounted by effectively using the transverse member (existing member) present at the optimum position.

In one embodiment of the present invention, the driving device is mounted on the suspension cross member at three points.
According to the said structure, the pitching of a drive device can be prevented still more efficiently.

In one embodiment of the present invention, a parcel storage part is provided in front of the heat exchanger and / or the air cleaner.
According to the above configuration, an appropriate small parcel can be stored in the storage unit while effectively utilizing the space, and convenience can be improved.

In one embodiment of the present invention, an air conditioning unit for air-conditioning the passenger compartment is provided, and the air-conditioning unit is disposed at the rear of the passenger compartment.
According to the above configuration, since the air conditioning unit is arranged on the rear side, it is possible to omit the arrangement of the air conditioning unit on the front side, and thereby, it is possible to achieve a further backward arrangement of the driving device. Further, the yaw moment of inertia can be further reduced to further improve the steering stability and the motion performance of the vehicle.

In one embodiment of the present invention, a luggage compartment is formed behind the air conditioning unit.
According to the said structure, arrangement | positioning of an air conditioning unit and formation of a cargo compartment can be made compatible.

According to the present invention, the driving device is disposed in the recess of the dash panel, and the heat exchanger is disposed between the front end of the driving device and the axle of the front wheel. The vehicle can be disposed backward to bring it closer to the center of the vehicle, and it is possible to reduce the yaw moment of inertia and improve the steering stability and the motion performance of the vehicle.
In addition, since the suspension for supporting the front wheels is provided and the heat exchanger is supported by the suspension cross member for supporting the suspension, the existing member (suspension cross member) is effectively used for heat exchange. In addition to supporting the heat exchanger, the above-described suspension cross member has a high rigidity, so that it is possible to ensure a high support rigidity of the heat exchanger.

The purpose of reducing the yaw moment of inertia and making effective use of existing members (suspension cross members) to support the heat exchanger and to ensure high support rigidity of the heat exchanger And a suspension for supporting the front wheel, wherein the suspension is disposed between the front end of the driving device and the axle of the front wheel. This is realized by a configuration in which the heat exchanger is supported by a cross member .

An embodiment of the present invention will be described in detail with reference to the drawings.
The drawings illustrate auxiliary arrangement structure in a vehicle engine compartment, Figure 1 shows a side view, FIG. 2 and 3 showing a plan view, the engine room 1 and passenger compartment 2 and the dash lower panel 3 (dash panel) It is partitioned in the front-rear direction.

  A floor panel 4 that extends rearward substantially horizontally is connected to the rear end of the lower end of the dash lower panel 3, and a rear bulkhead 5 that rises from the rear portion of the floor panel 4 to a front, low, and rear height is provided. A rear cowl portion 6 extending in the vehicle width direction is disposed on the rear surface of the upper end portion of 5. Here, the rear bulkhead 5 described above is a panel member that partitions the compartment 2 and the rear portion of the compartment.

In addition , a rear floor 7 extending rearward from the intermediate portion in the vertical direction of the rear bulkhead 5 is provided, and an air conditioning unit 8 that air-conditions the passenger compartment 2 is disposed near the rear cowl portion 6 on the rear floor 7. A luggage room 9 (a so-called trunk room) is formed behind 8.

At the center of the floor panel 4 at which continuous with the dash lower panel 3 described above to form a cabin floor, a tunnel portion 10 extending in the longitudinal direction projecting from the cabin 2 inside is formed, the tunnel A tunnel member 11 (so-called high-mount backbone frame) extending along the tunnel portion 10 is joined to the upper portion of the portion 10. The tunnel member 11 has a front end joined to the dash lower panel 3 and a rear end joined to the rear bulkhead 5, and between the tunnel member 11 and the tunnel portion 10 as shown in FIG. Closed cross-sections 11A and 11A are formed, and the tunnel member 11 is configured to improve floor rigidity and vehicle body rigidity.

Left and right seats 14, 14 each having a seat cushion 12 and a seat back 13 are disposed above the floor panel 4 across the tunnel portion 10 and the tunnel member 11. In this embodiment, to set the right seat 14 corresponding to the steering wheel 15 to the driver's seat is set to the left of the seat 14 in the passenger's seat.

  By the way, in the engine room 1 described above, a pair of left and right front side frames 16 and 16 extending in the front-rear direction of the vehicle and having rear ends connected to the dash lower panel 3 are provided. A pair of left and right floor frames 17, 17 extending in the front-rear direction of the vehicle are provided at the lower end portion thereof along the dash lower panel 3.

  A front cross member 18 (see FIG. 5) extending in the vehicle width direction is provided between the front side frames 16 and 16 described above, and a vehicle is provided at the rear ends of the floor frames 17 and 17 joined to the lower surface of the floor panel 4. Rear cross members 19, 19 extending in the width direction are provided.

  A pair of left and right rear side frames 20, 20 are provided so as to extend from the rear surface of the rear cross member 19 to the lower surface of the rear floor 7, and two rear cross members 21, 22 extending between the rear side frames 20, 20 extend in the vehicle width direction. The rear bumper reinforcement 23 extending in the vehicle width direction is disposed at the rear of the pair of left and right rear side frames 20 and 20.

  As shown in FIG. 3, side sills 24, 24 extending in the front-rear direction of the vehicle are provided at the left and right ends of the floor panel 4 in parallel with the floor frame 17 described above. These side sills 24, 24 are vehicle body rigid members having a side sill closed section that extends in the front-rear direction of the vehicle by joining a side sill inner and a side sill outer.

  The front end portion of the side sill 24 described above is joined to the lower end portion of the hinge pillar 25 extending in the vertical direction. The hinge pillar 25 is a vehicle body rigid member having a closed cross section that extends in the vertical direction by joining a hinge pillar inner and a hinge pillar outer.

  5 is an enlarged side view of the main part of FIG. 1, FIG. 6 is a side view of the same part as FIG. 5 viewed from the right side as the exhaust system side, and FIG. 7 is an enlarged plan view of the main part of FIG. As shown in FIG. 5, a cowl portion 27 that is spaced forward of the dash lower panel 3 and supports the front end of the front window 26 is disposed in the vehicle width direction. In this embodiment, the above-described cowl portion 27 includes a cowl upper panel 28 and a cowl box 29.

An instrument panel member 30 having a closed cross-sectional structure extending in the vehicle width direction is provided so as to be separated from the rear of the above-described cowl portion 27.
Left and right end portions of the instrument panel member 30, as shown in FIG. 7, is joined between the rear mutual hinge pillar 25.

Then, as shown in FIG. 7, the center portion in the vehicle width direction of the dash lower panel 3 is recessed backward from the cowl portion 27 to between the instrument panel members 30 to form a recess 3 a. Here, the tunnel member 11 joined to the upper portion of the tunnel portion 10 is formed with an extension portion 11a integrally or integrally with the tunnel member 11, and the extension portion 11a is formed along the recess portion 3a of the dash lower panel 3. , The general surface (surface not recessed) is disposed.

Further , a closed cross-sectional structure and a pair of instrument panel connection members 31 and 31 for connecting the above-described instrument panel member 30 and the tunnel member 11 in front and rear are provided so as to improve vehicle body rigidity.

5, 6, 7, the engine 32 is disposed in the recess 3a of the above so as to approach the front of the instrument panel member 30 described above. The engine 32 is arranged vertically, and an ISG unit 33 (integrated starter generator unit, an integrated starter generator unit) is continuously provided at the rear of the engine 32. And a transmission 34 continuously disposed in the tunnel portion 10 of the floor panel 4 is provided behind the ISG unit 33.

  As shown in FIG. 2, the upper end of the engine 32 is disposed so as to be higher than the seating surface of the occupant seat 14 disposed on the upper portion of the floor panel 4, and the engine 32, ISG described above. The unit 33 and the transmission 34 are arranged at positions where the occupant A seated on the occupant seat 14 overlaps with the vehicle in the front-rear direction, and the overall height and overall length of the vehicle are shortened to make the vehicle compact. is doing.

Incidentally, FIG. 3, as shown in FIG. 6, but the exhaust side of the cylinder head of the engine 32 is connected to an exhaust system, an exhaust manifold 35 which constitutes the exhaust system from the cylinder head of the engine 32 of the engine 32 One side is disposed in front.

  An exhaust pipe 36 extending substantially in the vertical direction is provided from a collecting portion of the exhaust manifold 35 located in front of one side of the engine 32, and a catalyst 37 is interposed in the exhaust pipe 36.

Further , an exhaust pipe 38 downstream of the exhaust pipe 36 is disposed in the tunnel portion 10, and a catalyst 39, a silencer 40, and a bifurcated exhaust pipe 41 are connected downstream of the exhaust pipe 38 as shown in FIG. ing.

  That is, the exhaust system of the engine 32 includes the above-described elements 35 to 41, and the exhaust system of the engine 32 is disposed via one front side of the engine 32, and Even if the exhaust system collective portion disposition space becomes narrow due to the backward layout, the exhaust manifold 35 and the collective portion thereof are appropriately disposed by using this space effectively.

  On the other hand, as shown in FIG. 7, the front wheel 42 is supported by a suspension arm 43 as shown in FIG. 7, and the pair of left and right suspension arms 43, 43 are attached to a suspension cross member 44 (so-called suspension cross). The front wheels 42 are steered via a steering rack 45 and left and right tie rods 46,46.

  As shown in FIGS. 5 and 6, a cooling unit 48 (a unit including a radiator and a fan) is supported on the suspension cross member 44 via a bracket 47, and an air conditioning condenser is disposed at the front of the cooling unit 48. A so-called cooler condenser 49 is provided.

  Here, the lower part of the radiator 50 of the cooling unit 48 is supported as shown in a side view in FIG. That is, a bracket 47 having a substantially U-shape in side view is attached to the suspension cross member 44 using a connecting means 51 such as a bolt or a nut, and a lower tank of the radiator 50 is attached to and supported by the upper surface of the bracket 47 via a mount rubber 52. I am letting.

Further, the radiator 50 upper is supported, as shown in a front view in FIG. That is, an upper bracket 54 having a substantially Z-shape in front view is attached to the front side frame 16 using connecting means 53 such as bolts and nuts, and a lower portion of the projecting portion on the inner side of the upper bracket 54 is mounted via a mount rubber 55. The upper tank of the radiator 50 is attached and supported.
Moreover, as shown in FIGS. 5 and 6, the radiator 50 is disposed between the front end of the engine 32 and the axle of the front wheel 42, that is, in the wheel base.

In FIG. 9, but shows only one of the support structure of the radiator 50, the other radiator 50 is supported by the structure and the substantially symmetrical structure of FIG. 8 and 9, the arrow F indicates the front of the vehicle, the arrow R indicates the rear of the vehicle, the arrow IN indicates the inner side of the vehicle, and the arrow OUT indicates the outer side of the vehicle.

  On the other hand, as shown in FIG. 5, a bonnet 56 that covers the upper part of the engine room 1 is provided so as to be openable and closable. The opening 57 is communicated with the front surface of the cooling unit 48 by an air duct 59 (radiator cooling air introduction duct).

  In the engine room 1 described above, an air cleaner 60 is disposed above the air duct 59 and the cooling unit 48 as shown in FIGS. 5 and 7, and an intake pipe 61 (so-called fresh pipe) is disposed upstream of the air cleaner 60. The air intake hose 62 and the intake manifold 63 are attached to the downstream side of the air cleaner 60, and the intake air purified by the element 64 (see FIG. 5) in the air cleaner 60 is supplied to the air intake hose 62 and the intake manifold 63. It is configured to supply to the intake port in the cylinder head of the engine 32 via

  As shown in FIG. 10, a concave portion 60a is provided at a position corresponding to the upper tank of the radiator 50 on the lower surface of the air cleaner 60 disposed above the radiator 50 as a heat exchanger, and the concave portion 60a. In addition, an upper tank at the upper end of the radiator 50 is disposed, and the capacity of the air cleaner 60 is appropriately secured while lowering the vehicle height of the vehicle.

  Here, the air cleaner 60 includes an air cleaner case 60b, an air cleaner cover 60c, and an element 64 (a so-called filter) disposed in the air cleaner case 60b. The recessed portion 60a is formed on the air cleaner cover 60 side. Yes.

Further , as shown in FIG. 10, the rear end upper portion 59a of the air duct 59 and the mounting piece 49a of the cooler condenser 49 are fastened together with a mounting member 95 such as a bolt via a rubber member GU to the upper tank of the radiator 50. Has been.

Further , an insulator 97 for preventing heat damage is attached to the lower surface of the air cleaner case 60b in the air cleaner 60 described above through the space 96 to cover almost the entire area with the lower surface of the air cleaner case 60b.

  On the other hand, as shown in FIGS. 5, 6, and 7, a front trunk box 98 serving as a small luggage storage unit is provided in front of the radiator 50 and the air cleaner 60.

That is, as shown in a plan view in FIG. 7, the space surrounded by the pair of left and right front side frames 16 and 16, the shroud member 77, and the front cross member 18 (see FIGS. 5 and 6) is effective. Utilizing this, a bottomed box-shaped trunk pan 99 is provided, the trunk pan 99 is fixed to the front side frame 16, and the front trunk box 98 is fixed to the trunk pan 99.

  The front trunk box 98 has a bottomed box shape with an open top, and a flange portion extending outward from the upper end opening is integrally or integrally formed at the upper end of the box.

  On the other hand, a lid member 101 for opening and closing the upper end opening of the front trunk box 98 is attached to the lower surface of the bonnet 56 via the bellows member 100, and the upper end opening of the front trunk box 98 is opened when the bonnet 56 is opened. The upper end opening of the front trunk box 98 is closed when the hood 56 is closed.

  As shown in FIG. 11, at least one place, preferably a plurality of places in the vehicle width direction of the trunk pan 99 described above is connected to the front cross member 18 via the bracket 102 to improve the support rigidity of the trunk pan 99. You may comprise so that.

  By the way, as shown in FIGS. 1, 3, and 7, a pair of left and right batteries 65, 65 are disposed on the side of the engine 32 in front of the general surface of the dash lower panel 3 (immediately in this embodiment). is doing.

  The pair of left and right batteries 65, 65 also serve to charge the electric energy generated by the ISG unit 33. In this embodiment, the batteries 65, 65 are disposed at the dash lower panel connection portions of the pair of left and right front side frames 16, 16. The front end position of the engine 65 is disposed in front of the engine 32, and the load at the time of a frontal collision of the vehicle is received by the battery 65 to prevent the engine 32 from retreating.

  As shown in FIG. 7, the extension portions 11a and 11a of the tunnel member 11 are connected to the battery placement position of the dash lower panel 3, and are configured to disperse the collision load in the body.

Further , as shown in FIGS. 3 and 7, the cooling unit 48 described above is disposed inside the engine room 1 of the pair of left and right batteries 65 and 65 so as to overlap the batteries 65 and 65 in the front-rear direction of the vehicle. It is arranged.

  Moreover, the respective heavy loads of the drive device including the engine 32 and the ISG unit 33, the pair of left and right batteries 65 and 65 as an auxiliary machine, and the radiator 50 as an auxiliary machine are intended to reduce the yaw moment of inertia. As shown in FIG. 3 and FIG. 7, it is disposed in the wheel base.

  The above-described battery 65 is attached as shown in FIG. That is, a synthetic resin battery case 67 having a flange portion 66 integrally provided at the lower portion is provided, and a metal battery tray 68 is interposed between the upper frame 16a and the lower end of the battery 65 in the front side frame 16, A bolt 69 is fastened from above the flange portion 66 to a nut that is previously welded and fixed to the lower surface of the upper frame 16 a described above, and the battery 65 in the battery case 67 is fixed on the front side frame 16.

Here, the upper part of the battery 65 is covered with a battery cover 70 attached to the battery case 67.
In FIG. 12, only the mounting structure of one battery 70 is shown, but the other battery 70 is fixed on the front side frame 16 by a mounting structure substantially symmetric to FIG.

  1 to 12, reference numeral 71 is a rear wheel, 72 is a roof that covers the upper part of the passenger compartment 2 so that it can be opened and closed, 73 is an instrument panel, and 74 is attached to the front end of the front sight frame 16 via a connecting member 75. The bumper reinforcement 76, the apron reinforcement 76, the shroud member 77, the front header 78, the front pillar 79, and the transverse member 80 in the suspension cross member 44 are shown.

  As shown in FIGS. 13 and 14, the suspension cross member 44 described above has a substantially U-shaped suspension cross main portion 44A in plan view, and a transverse member 80 that is integrated with the suspension cross main portion 44A and extends in the vehicle width direction. The front part of the engine 32 as a drive device, specifically the front part of the cylinder block, is mounted on the transverse member 80 via the engine front mount bracket 103 and the engine mount rubber 104.

  Further, the left and right portions of the cylinder block are mounted on overlapping portions of the transverse member 80 and the suspension cross main portion 44A via the engine side mount brackets 105 and 106 and the engine mount rubbers 107 and 108.

  In short, the front portion of the cylinder block in the engine 32 is mounted on the suspension cross member 44, and the engine 32 is mounted at three points as shown in FIGS.

  15 is a side view, FIG. 16 is a bottom view, and FIG. 17 is a plan view. The output from the transmission 34 passes through a propeller shaft 81, a rear differential device 82, and left and right rear wheel shafts 83, 83. To the rear wheels 71, 71.

  The above-described rear differential device 82 is a differential device for driving the rear wheel shaft 83, and a torque tube PPF (PPF is a power plant frame) 84 is provided on the outer periphery of the propeller shaft 81.

  As shown in FIGS. 15, 16, 17, and 19, a fuel tank 85 is disposed between the rear bulkhead 5 and the rear wheel shaft 83 of the vehicle below the trunk room 9 as a cargo room. is doing. In other words, a rear differential device 82 that drives the rear wheel shaft 83 is disposed behind the fuel tank 85 so that the fuel tank 85 is not struck by the rear differential device 82 during a frontal collision. . Further, the air conditioning unit 8 is disposed on the rear floor 7 behind the rear bulkhead 5 above the fuel tank 85.

  As shown in FIG. 19, the above-described fuel tank 85 has a recess 85a corresponding to the portion where the silencer 40 and the torque tube PPF 84 are disposed, and the overall shape of the fuel tank 85 is formed in a substantially L shape in front view. Has been.

  In addition, tank mount straps 86 and 86 for suspending and supporting the fuel tank 85 are disposed on the mount portions 85 b and 85 c of the fuel tank 85, but between the mount portions 85 b and 85 c and the tank mount strap 86. An insulator 87 for preventing thermal damage from the exhaust system is interposed, and a space 88 is formed between the insulator 87 and the fuel tank 85 covering almost the entire lower surface of the fuel tank 85.

A portion of the exhaust pipes 38 and 41 as exhaust pipes and a silencer 40 (specifically, a main silencer) are disposed in a portion corresponding to the concave portion 85a on the side of the fuel tank 85 described above. That is, the silencer 40 and the fuel tank 85 as heavy objects are provided in the wheel base so as to further reduce the yaw moment of inertia.
As shown in FIGS. 16 and 19, the silencer 40 is supported by the rear side frame 20 at two front and rear positions thereof by a mount member 89.

The mount member 89 includes a silencer mount bracket 90 fixed to the silencer 40 side, a lower bracket 92 that connects the silencer mount bracket 90 and the mount rubber 91, and a space between the rear side frame 20 and the mount rubber 91. And an upper bracket 93 to be connected.
Further, in order to prevent the silencer 40 from moving forward by the rear differential device 82 at the time of a rear collision, the silencer 40 and the rear differential device 82 are arranged in the vehicle width direction as shown in FIGS. It is offset and arranged.

  On the other hand, as shown in FIGS. 15, 16, and 17, the exhaust pipes 38 and 41 as exhaust pipes are extended in the vehicle front-rear direction under the floor panel 4 and below the rear floor 7. As described above, the passenger seat 14 is disposed in the passenger compartment 2 above the floor panel 4, and as shown in FIGS. 15 and 18, the floor panel 4 lower portion below the seat 14 is described in detail. The tunnel section 10 is provided with the above-described catalyst 39 provided in the middle of the exhaust pipes 38 and 41 so as to prevent heat damage to the passenger seated on the seat 14.

  In the figure, 94 is a lower tunnel member (a so-called lower backbone frame) that forms a closed cross section with the floor panel 4 and extends in a pair of left and right in the longitudinal direction of the vehicle, and SB is for a seat belt. It is a buckle. Further, as shown in FIG. 16, the rear wheel 71 is independently suspended by a multi-link type rear suspension RS, and the rear suspension RS is supported by the subframe SF.

  Thus, the auxiliary equipment arrangement structure in the vehicle engine room of the above embodiment is an auxiliary equipment arrangement structure in the vehicle engine room in which the vehicle compartment 2 and the engine room 1 are partitioned by the dash lower panel 3. As shown in FIG. 7, a driving device (see engine 32 in particular) is disposed in the longitudinal recess 3 a formed in the dash lower panel 3, and between the front end of the driving device and the axle of the front wheel 42. As shown in FIG. 5, a heat exchanger (see radiator 50) is provided.

  According to this configuration, a heavy driving device (see engine 32 in particular) is disposed in the upper concave portion 3a of the dash lower panel 3, and between the front end of the driving device and the axle of the front wheel 42, that is, in the wheel base. Since the heat exchanger (see the radiator 50) is disposed, the heavy object of the drive device and the heat exchanger can be disposed backward to bring it closer to the center of the vehicle, and as a result, the yaw moment of inertia is reduced, It is possible to improve steering stability and vehicle motion performance.

  Also, a suspension (see suspension arm 43) for supporting the front wheel 42 is provided, and the heat exchanger (see radiator 50) is supported on a suspension cross member 44 for supporting the suspension as shown in FIG. It is.

  According to this configuration, the existing member (see the suspension cross member 44) can be effectively used to support the heat exchanger, and the suspension cross member 44 described above has high rigidity. Therefore, the heat exchanger (radiator 50) High support rigidity can be ensured.

  Further, as shown in FIG. 10, an air cleaner 60 is disposed above the heat exchanger (see the radiator 50), and a recessed portion 60 a is provided at a position corresponding to the heat exchanger on the lower surface of the air cleaner 60. The upper end (refer to the upper tank) of the heat exchanger (refer to the radiator 50) is disposed in the recessed portion 60a.

  According to this configuration, the capacity of the air cleaner 60 can be appropriately secured while reducing the vehicle height of the vehicle, and the air cleaner 60 as a heavy object is also possible by providing the above-described recessed portion 60a. Can be placed backwards.

In addition, the suspension cross member 44 is mounted with a front portion of the driving device (see the engine 32).
According to this configuration, by mounting the front portion of the driving device (see the engine 32) on the suspension cross member 44, the driving device (see the engine 32) pitching (vibration in which the front and rear are moved up and down oppositely). Can be prevented.

Further, as shown in FIG. 14, the suspension cross member 44 includes a substantially U-shaped suspension cross main portion 44A in plan view and a transverse member 80 that is integrated with the suspension cross main portion 44A and extends in the vehicle width direction. The front part of the drive device (see engine 32) is mounted on the transverse member 80.
According to this configuration, it is possible to mount the front portion of the drive device (see the engine 32) by effectively using the transverse member 80 (existing member) present at the optimum position.

Further, the driving device (see engine 32 in particular) is mounted on the suspension cross member 44 at three points.
According to this configuration, pitching of the drive device (see the engine 32) can be more effectively prevented.

In addition, a storage part for small parcels (see front trunk box 98) is provided in front of the heat exchanger (see radiator 50) and / or air cleaner 60.
According to this configuration, it is possible to store an appropriate small baggage in the storage unit (see the front trunk box 98) while effectively utilizing the space, and it is possible to improve convenience.

In addition, an air conditioning unit 8 for air-conditioning the passenger compartment 2 is provided, and the air conditioning unit 8 is disposed behind the passenger compartment 2.
According to this configuration, since the air conditioning unit 8 is arranged on the rear side, the arrangement of the air conditioning unit on the front side can be omitted, and a further backward arrangement of the drive device (especially the engine 32) can be achieved. As a result, it is possible to further reduce the yaw moment of inertia and further improve the steering stability and the motion performance of the vehicle.

A cargo compartment 9 is formed behind the air conditioning unit 8.
According to this configuration, the arrangement of the air conditioning unit 8 and the formation of the luggage compartment 9 can be made compatible.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The dash panel of the present invention corresponds to the dash lower panel 3 of the embodiment,
Similarly,
The drive device corresponds to the engine 32 or the engine 32 and the ISG unit 33,
The heat exchanger (auxiliary machine) corresponds to the radiator 50,
The suspension corresponds to the suspension arm 43,
The parcel storage part corresponds to the front trunk box 98,
The present invention is not limited only to the above-described embodiments.

The schematic side view which shows the auxiliary equipment arrangement | positioning structure in the vehicle engine room of this invention. Explanatory drawing which shows the relationship between a passenger | crew and a power train. FIG. 2 is a schematic plan view of FIG. 1. Sectional drawing of a tunnel part. The enlarged side view which shows the structure of the left side of a vehicle front part. The enlarged side view which shows the structure of the right side of a vehicle front part. The principal part enlarged plan view of FIG. The side view which shows the support structure of a radiator lower part. The front view which shows the support structure of a radiator upper part. The side view which shows the arrangement | positioning relationship between a radiator and an air cleaner. The side view which shows the other Example of a trunk-pan support structure. The perspective view which shows a battery mounting structure. The top view which shows the mount structure of a drive device. The principal part perspective view which shows the mount structure of a drive device. The principal part enlarged side view of FIG. The bottom view of FIG. The top view of the principal part of FIG. Sectional drawing of the principal part in alignment with the BB line of FIG. Sectional drawing of the principal part which follows the CC line of FIG. The top view which shows the auxiliary equipment arrangement | positioning structure in the conventional vehicle engine room.

1 ... Engine room 2 ... Car compartment 3 ... Dash lower panel (dash panel)
3a ... concave part 8 ... air conditioning unit 9 ... cargo compartment 32 ... engine (drive device)
42 ... front wheel 43 ... suspension arm (suspension)
44 ... Suspension cross member 44A ... Suspension cross main part 50 ... Radiator (heat exchanger)
60 ... Air cleaner 60a ... Recessed portion 80 ... Transverse member 98 ... Front trunk box (storage portion)

Claims (8)

An auxiliary machine arrangement structure in a vehicle engine room in which a vehicle compartment and an engine room are partitioned by a dash panel,
A driving device is disposed in the concave portion in the front-rear direction formed in the dash panel,
The front end of the driving device, the heat exchanger is arranged between the front wheel axle,
An auxiliary equipment installation structure in a vehicle engine room , wherein a suspension for supporting the front wheels is provided, and the heat exchanger is supported by a suspension cross member for supporting the suspension . An air cleaner is disposed above the heat exchanger, a recessed portion is provided at a position corresponding to the heat exchanger on a lower surface of the air cleaner, and an upper end of the heat exchanger is disposed in the recessed portion. An auxiliary machine arrangement structure in a vehicle engine room according to claim 1. The auxiliary equipment installation structure in a vehicle engine room according to any one of claims 1 to 2, wherein a front portion of the driving device is mounted on the suspension cross member . The suspension cross member includes a substantially U-shaped suspension cross main portion in plan view, and a transverse member that is integrated with the suspension cross main portion and extends in the vehicle width direction,
The auxiliary equipment installation structure in a vehicle engine room according to claim 3, wherein a front portion of the drive device is mounted on a transverse member . The auxiliary machine installation structure in a vehicle engine room according to claim 3 or 4 , wherein the driving device is mounted on the suspension cross member at three points . The auxiliary equipment installation structure in the vehicle engine room according to any one of claims 2 to 5, wherein a storage part for small packages is provided in front of the heat exchanger and / or the air cleaner . The auxiliary equipment arrangement structure in the vehicle engine room according to any one of claims 1 to 6, wherein an air conditioning unit for air-conditioning the passenger compartment is provided, and the air conditioning unit is provided at the rear of the passenger compartment . Auxiliary distribution設構granulated in a vehicle engine room behind the <br/> claim 7, wherein the luggage compartment is formed in the air conditioning unit.

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