JP2002221012A - Engine module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the whole number of circuits of a system when driving solenoid coils of actuators for solenoid valve of an engine. SOLUTION: In this engine module, a drive circuit PWM-driving the respective solenoid coils 22a, 22b, 23a, 23b of the actuators 20a, 20b is formed by bus bars 31a-31h, 36, 39a-39h 43 or the like, is housed in a module body 21a, and is directly connected to the actuators 20a, 20b via a connector 41 as a switch unit 21. With respect to grounding, a grounding bus bar 43 is directly contacted with an engine body 68 by a metal screw 60 or the like for the grounding, or a common ground line common to the plural switch units 21 is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an engine module for driving an electromagnetic coil of an actuator for an electromagnetically driven valve of an engine.

[0002]

2. Description of the Related Art In recent years, there has been a demand for a shift from a mechanical type using a cam mechanism to an electronic control type energy saving type using an electromagnetic valve actuator in an electromagnetically driven intake / exhaust valve system for an automobile engine. ing. For example, in a conventional example disclosed in Japanese Patent Application Laid-Open No. 8-284626, two electromagnetic coils (an upper coil 2 and a lower coil 3) are generally provided in an actuator 8 for driving each valve (electromagnetic drive valve) 1 as shown in FIG. ) Is installed, and the upper coil 2 and the lower coil 3 are subjected to PWM drive control to perform opening / closing drive control of each valve 1.

[0003] Generally, if the valve 1 is rapidly opened and closed, the durability of the valve 1 may be significantly impaired. Therefore, the voltage application in the forward direction and the voltage application in the reverse direction to each of the electromagnetic coils 2 and 3 must be performed. The valve 1 is seated on the cylinder head 6 while appropriately adjusting the opening / closing operation to slightly open and close the valve 1 by performing the opening / closing drive while applying a brake in the reverse direction to perform the opening / closing drive. The hitting sound at the time is reduced, and low-pitched sound measures are taken. As described above, when the voltage application in the forward direction and the voltage application in the reverse direction to each of the electromagnetic coils 2 and 3 are appropriately adjusted, 2
It is necessary to form two voltage applying wires 4 and 5 in advance.

In FIG. 4, reference numeral 6 denotes a cylinder head, and reference numeral 7 denotes a head cover.

FIG. 5 is a circuit diagram showing the conventional example of FIG. In FIG. 5, for example, a 36V battery power supply (+ B) is connected as a power supply circuit to a relay box 11 installed in an engine room, and power supplied from the relay box 11 is supplied to a glove box in a vehicle compartment or the like. Is supplied to an actuator 8 (each electromagnetic coil 2, 3) in the cylinder head 6 of the engine through a drive unit 12 installed in the engine.

The drive unit 12 is, for example, an n-type MOSF
Single-phase bridge circuits BR1 and BR2 are formed using semiconductor switching elements 13a to 13h such as ET. Each of the semiconductor switching elements is controlled by an electronic control unit (ECU) 14 disposed in an instrument panel peripheral light. By switching between 13a to 13h, each of the electromagnetic coils 2 and 3 is appropriately PWM-driven.

Incidentally, reference numerals 15 and 16 in FIG.
Reference numeral 17 indicates a relay, reference numeral 18 indicates a relay wire harness,
Reference numeral 19 denotes an engine harness, reference numeral IG denotes an ignition switch, and reference numeral AL denotes an alternator.

[0008]

In the above conventional example, as shown in FIGS. 4 and 5, two voltage applying wires 4 and 5 are connected to one electromagnetic coil 2 and 3, respectively. Further, as shown in FIG. 4, two electromagnetic coils 2 and 3 are provided for one valve 1. From these facts, there are four voltage applying wires 4 and 5 per one valve 1.

When considering the entire engine, for example, four cylinders / one cylinder having four valves per cylinder
In a 6-valve engine, 64 voltage application wires 4, 5
Will exist.

Here, the electromagnetic coils 2 and 3 for driving the intake and exhaust valves of the engine are installed in a housing as an actuator 8 and become one part, and are installed in the cylinder head 6 of the engine. On the other hand, the drive unit 12 is disposed in a glove box or the like in the vehicle interior. Therefore, in the conventional example, the grounding of each of the single-phase bridge circuits BR1 and BR2 is to be individually connected to the wire harness 18 or the like for each of the single-phase bridge circuits BR1 and BR2 and to be connected to the actuator in the engine. Accordingly, as described above, the number of harness circuits in the entire system requires a large number of circuits, such as 64 circuits in a 4-cylinder, 16-valve engine in which the number of electric wires in the wire harness 18 is, for example.

An object of the present invention is to provide an engine module capable of reducing the number of harness circuits in the entire system.

[0012]

Means for Solving the Problems In order to solve the above problems,
The invention according to claim 1 is an engine module for driving an electromagnetic coil of an actuator for an electromagnetically driven valve of an engine, wherein the module main body and the electromagnetic coil of the actuator housed in the module main body are driven. A drive circuit, the module main body, one connector for directly connecting the drive circuit to a connector formed on the actuator side, and the drive circuit to a predetermined electronic control unit and a predetermined power supply circuit And another connector for connection through a predetermined wire harness is formed with respect to the drive circuit. The drive circuit is configured such that a ground wire of the drive circuit is routed outside the module main body to form a predetermined fixed The parts are fixedly contacted to the engine body and grounded.

According to a second aspect of the present invention, there is provided the engine module according to the first aspect, wherein the engine module drives an electromagnetic coil of an actuator for an electromagnetically driven valve of an engine. A drive circuit housed in the main body and driving the electromagnetic coil of the actuator, and one connector for directly connecting the drive circuit to a connector formed on the actuator side, to the module main body; Another connector for connecting the drive circuit to a predetermined electronic control unit and a predetermined power supply circuit through a predetermined wire harness is formed, and the drive circuit is configured such that a ground wire of the drive circuit has another wiring. A place different from the engine body through a common ground wire to be grounded in common with the ground wiring of the engine module It is intended to be grounded to the ground parts.

According to a third aspect of the present invention, in the engine module according to the first or second aspect, the electromagnetic coil includes an upper coil and a lower coil for opening and closing an electromagnetically driven valve, The drive circuit includes a voltage application wiring for applying a voltage applied from the power supply circuit to the upper coil and the lower coil, a grounding wiring for grounding the upper coil and the lower coil, and the electronic control unit. And a semiconductor switching element that is bridge-connected to individually turn on / off the application of a voltage through the voltage application wiring and the grounding through the grounding wiring to the upper coil and the lower coil based on a signal from It is.

According to a fourth aspect of the present invention, in the engine module according to any one of the first to third aspects, the voltage application wiring is formed of a bus bar.

According to a fifth aspect of the present invention, in the engine module according to any one of the first to third aspects, the voltage application wiring is formed on a wiring board.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment FIG. 1 is a circuit diagram showing an engine module according to a first embodiment of the present invention.

This engine module, as shown in FIG.
2 of the electromagnetically driven valve installed on the engine cylinder head
A switch unit 21 that can be integrally attached to the actuators 20a and 20b, and the switch unit 21 is integrally connected to the actuators 20a and 20b, and a wire harness 18 therebetween (see FIG. 5). Is unnecessary, and since the drive circuit can be terminated in the engine module by integrating the semiconductor switch with the engine module, the circuit up to the engine module can be configured as a power supply and a ground,
Further, since the ground circuit can be fastened together when fixing the engine module, the number of circuits in the entire system is reduced.

Here, each actuator 20a, 20b
In the same manner as in the conventional example shown in FIGS. 4 and 5, two electromagnetic coils (upper coils 22a and 22b and lower coil 23) are used to drive each electromagnetically driven valve.
a, 23b).

The switch unit 21 is provided for each electromagnetic coil 2.
For example, bus bars 31a to 31h, 3 serving as voltage application wires for applying a voltage to 2a, 22b, 23a, 23b
6, 39a to 39h and 43, and switching elements 24a to 24d and 24e for switching ON / OFF of the voltage application.
24h, 24i to 24l, and 24m to 24p are housed in a single module body 21a.

Specifically, in this switch unit 21, as shown in FIG. 1, four semiconductor switching elements 24a to 24d, 24e to 24h,
Four single-phase bridge circuits BR1 to BR4 are formed by using 24i to 24l and 24m to 24p, and are housed in the module main body 21a. To BR4 semiconductor switching elements 24a to 24d, 24e to 2
4h, 24i to 24l, and 24m to 24p are switched on and off so that each of the electromagnetic coils 22a, 22b, 23a,
23b are each driven by PWM.
It is to be noted that each of the electromagnetic coils 22a, 22b, 23a and 23b has a single
The WM drive control is performed in the same manner as in the related art (for example, JP-A-8-284626).
a, 22b, 23a, 23b, the forward voltage application and the reverse voltage application are appropriately adjusted, and the opening / closing operation is performed by performing a slight reverse driving at the time of opening / closing operation and applying a brake to open / close the electromagnetically driven valve. In order to buffer the opening and closing of the electromagnetic coils 22a, 22b, and 23.
If there is an individual difference between a and 23b, adjust the
This is also for controlling the M drive.

As shown in FIG. 1, the gates of the semiconductor switching elements (n-type MOSFETs) 24a to 24h are connected to harness connection connectors 33 formed on the module body 21a through gate connection bus bars 31a to 31h.
Are connected to a plurality of control system connection terminals 34 (see also FIG. 2). The control system connection terminals 34 are connected to the ECU 25 disposed in the vicinity of the instrument panel through the control system wire harness 35.
5 individually controls the on / off of each of the semiconductor switching elements 24a to 24h. The same applies to the other semiconductor switching elements 24i to 24p.

As shown in FIG. 1, a semiconductor switching element (n
Type MOSFETs) 24a, 24c, 24e, and 24g are connected to a power source connection terminal 3 of a harness connection connector 33 through a common drain connection bus bar 36.
7 (see also FIG. 2). Then, the power supply system connection terminal 37 is connected to a relay box (power supply circuit) RB disposed in the engine room through a power supply system wire harness 38, and power is supplied. The same applies to the semiconductor switching elements 24i, 24k, 24m, 24o.

As shown in FIG. 1, a semiconductor switching element (n
The source of the MOSFET 24a and the drain of the semiconductor switching element 24b are connected to the actuator connection connector 4 formed on the module body 21a through actuator connection bus bars 39a and 39b, respectively.
1, the source of the semiconductor switching element 24c and the drain of the semiconductor switching element 24d are connected to the actuator connection terminal 41a of the actuator connection connector 41 through actuator connection bus bars 39c and 39d, respectively. It is connected to the connection terminal 42b (see also FIG. 2).
Further, the source of the semiconductor switching element 24e and the drain of the semiconductor switching element 24f are respectively connected through bus bars 39e and 39f for connecting the actuator.
The source of the semiconductor switching element 24g and the drain of the semiconductor switching element 24h are connected to the actuator connection terminal 42c (see also FIG. 2) of the actuator connection connector 41, and are connected to the actuator connection bus bars 39g and 39h, respectively. The connector 41 is connected to an actuator connection terminal 42d (see also FIG. 2). And, as shown in FIG.
The actuator connection connector 41 is the actuator 2
0a side is directly fitted to the connector 45, thereby connecting each of the connection terminals 42a to 42a of the actuator connection connector 41.
42d are internal wirings 44a-4 of the actuator 20a.
4d, it is appropriately connected to both ends of each of the electromagnetic coils 22a and 23a. Further, another semiconductor switching element 24i
To 24p and each electromagnetic coil 22 of the actuator 20b
The same applies to the connection with b and 23b.

As shown in FIG. 1, a semiconductor switching element (n
The sources of the MOSFETs 24b and 24d are grounded through a common grounding bus bar (grounding wiring) 43.
Also, the semiconductor switching elements 24f, 24h, 24
The same applies to j, 24i, 24n, and 24p.

Thus, in the switch unit 21, the plurality of semiconductor switching elements 24a to 24d, 2
4e to 24h, 24i to 24l, and 24m to 24p are wired by bus bars 31a to 31h, 36, 39a to 39h, 43 and the like to form a circuit configuration in which four bridge circuits BR1 to BR4 are formed.

FIG. 2 is a schematic sectional view showing an example of the internal structure of the switch unit 21. In the example of FIG. 2, the upper coil 22a on one actuator 20a side is PWM-connected.
Although only four semiconductor switching elements 24a to 24d corresponding to the bridge circuit BR1 for driving are shown, other bridge circuits BR2, BR
Semiconductor switching elements 24e to 24p and the like corresponding to R2, BR3, and BR4 are provided. Also, an actuator connection terminal 42 connectable to the actuator 20a
The other four actuator connection terminals (not shown) that can be connected to the actuator 20b are arranged on the back side of a to d.

As shown in FIG. 2, the grounding bus bar 43 is routed outside the module body 21a, and is fitted to a part of the grounding bus bar 43 with a fixed component 60 such as a conductive metal screw. A fixing hole (screw hole) 59 is formed, and the fixed component 60 penetrates through the fitting hole 59 of the grounding bus bar 43 and is fixed (screw-fitted) to the engine main body 68 so that a dedicated wire harness is provided. , The grounding bus bar 43 can be grounded to the engine body 68 through the conductive fixing part 60.

The relay box (power supply circuit) RB turns on the relay 51 by turning on the ignition switch IG, and supplies power to the switch unit 21 connected through the wire harness 38. Incidentally, in the conventional example shown in FIG.
(Fuse 52) corresponding to the fuse 16 which is installed in the device and individually associated with each of the electromagnetic coils 2 and 3
Are arranged not in the switch unit 21 but in the relay box RB in this embodiment. This is because the switch unit 21 is connected to the actuator 20 of the engine unit.
a, 20b, the fuse 5
This is for the purpose of facilitating maintenance such as replacement of the second unit 2 and for realizing the miniaturization of the switch unit 21 which is installed integrally with the actuators 20a and 20b.

Reference numeral 55 in FIG. 1 denotes an alternator AL
Reference numeral 56 denotes a fuse interposed between the battery power supply (+ B) and the relay 51, and a fuse interposed between the relay 51 and the relay 51. Also, reference numeral 5 in FIG.
7 denotes semiconductor switching elements 24a to 24d, 24e to
Heat sinks for heat dissipation for 24h, 24i to 24l, and 24m to 24p, and reference numeral 58 denotes an insulator for insulating the bus bar 36 from the heat sink.

In this embodiment, the connector 4 commonly formed by the two actuators 20a and 20b
5 is connected by fitting an actuator connector 41 of the switch unit 21 as an engine module.

The ECU 25 and the relay box RB
The connector 66 of the wire harness 65 in which the wire harnesses 35 and 38 are further bundled is connected to the connector 33 of the switch unit 21 for connection.

In this way, the switch unit 21
Are actuator modules 20a, 2 as engine modules.
0b.

As for the grounding of the grounding bus bar 43 in FIG. 1, as described above, the fixed component 60 is passed through the fitting hole 59 of the grounding bus bar 43 and is fixed (screw-fit) to the engine body 68. The grounding bus bar 43 can be connected to the conductive fixing component 6 without using a dedicated wire harness.
It is possible to ground the engine main body 68 through 0.

In this embodiment, each ground bus bar 43 is fixed to the engine
It is only necessary to fix (screw in) to the ground and ground, so that it is not necessary to provide a dedicated grounding wire inside the wire harness 18 (see FIG. 5) as in the conventional example.

Here, in the conventional example shown in FIG. 5, four voltage application wires 4 and 5 are required for each actuator 8 corresponding to one electromagnetically driven valve. In the case of the valve-type electromagnetically driven valve, 64 circuits (= 16 valves × 4) of voltage application wires 4 and 5 were required as a whole. A control system electric wire connecting the ECU 14 and the drive unit 12 is connected to each actuator 8.
Requires four circuits, and a total of sixteen valves requires 64 (= 16 valves × 4). Also, eight wires between the relay box RB and the drive unit 12 are required. Further, since each single-phase bridge circuit BR1 and BR2 requires a grounding wire, 32 grounding wires are required. Considering these, 16
Eight (= 64 + 64 + 8 + 32) harness circuits were required.

On the other hand, in this embodiment, the wiring harness between the switch unit 21 as the engine module and each of the actuators 20a and 20b can be omitted. However, as shown in FIG. Four circuits in the wire harness 38 between the box RB and the switch unit 21;
Wiring harness 35 between switch 5 and switch unit 21
Only one of the eight circuits and the ground circuit. However, since four circuits (downstream of the fuse 52) increase in the relay box, 136 harness circuits (= (8 × 4) +
(8 x 8) + (8 x 1) + (8 x 4))
Only needs to be done. Therefore, compared to the conventional example shown in FIG.
There is an effect of reducing 32 wires (= 168-132).

When the ignition switch IG is turned on when using the engine module, the relay box R
The relay 51 in B is turned on, and power is supplied to the switch unit 21. Then, the semiconductor switching elements 24a to 24d, 24 constituting the single-phase bridge circuits BR1 to BR4 in the switch unit 21 are controlled by the ECU 25.
e to 24h, 24i to 24l, and 24m to 24p are individually turned on and off, and each of the electromagnetic coils 22a, 22b, 23a, and 23b in each of the actuators 20a and 20b is PWM-controlled.
Drive control. This allows the ECU to open and close the electromagnetically driven valve
Drive control can be appropriately performed at 25.

{Second Embodiment} FIG. 3 shows a second embodiment of the present invention, in which a switch as an engine module is provided for actuators 20a and 20b of a four-cylinder, 16-valve electromagnetically driven valve. FIG. 3 is a perspective view showing a state in which a unit 21 is attached.

As shown in FIG. 3, a pair of an intake valve portion 62 and an exhaust valve portion 63 are formed for each cylinder 61, and actuators 20a, 20b for driving the electromagnetically driven valves in the valves are provided in each of the valve portions 62, 63. Are installed respectively. Then, two electromagnetic coils 22a, 22b, 23a, 23b are provided for each of the actuators 20a, 20b.
Is built-in. In this embodiment, one switch unit 21 is integrally attached to two adjacent actuators 20a and 20b in the same cylinder.

That is, the actuator connection connector 41 of the switch unit 21 is fitted to the connector 45 formed on each of the valve portions 62 and 63 for connection.

The ECU 25 and the relay box RB
The connector 66 of the wire harness 65 in which the wire harnesses 35 and 38 are further bundled is connected to the connector 33 of the switch unit 21 for connection.

In this way, the switch unit 21
Are integrally connected to the actuators 20a and 20b as a module. That is, the actuators 20a, 20
Since the drive circuit 0b is converged in the module as the switch unit 21, the relay wire harness 18 and the like in FIG. 5 can be omitted, and the wiring up to around the engine is simplified.

Here, in the above-described first embodiment,
Each single-phase bridge circuit BR1 inside the switch unit 21
With respect to the grounding of BR4, the grounding bus bar 43 is fixed (screwed) to the engine main body 68 by the fixing part 60 and grounded, whereas in the second embodiment, each of the grounding bus bars 43 is installed in the engine room. The actuators 20a and 20b of the switch unit 21 are collectively grounded to a portion other than the engine main body 68 such as a vehicle body through two common grounding lines 70a and 70b.

The grounding of the common grounding lines 70a and 70b to the vehicle body and the like instead of the engine main body 68 is as follows.

That is, for example, each electromagnetically driven valve (the electromagnetic coil 2
2a, 22b, 23a, 23b) are, for example, 4
There are cases where the voltage is as high as 2V and the voltage of another drive system such as ignition for an ignition plug is as low as 14V. In this case, if the ground for the electromagnetically driven valve and the ground for the other drive system are common, noise is mixed into the ground of the other low voltage drive system under the influence of the high voltage drive of the electromagnetically driven valve. For this reason, the grounding accuracy on the low voltage side may be degraded, and a phenomenon called so-called ground floating may occur. In such a case,
It is preferable to separate the ground for the electromagnetically driven valve requiring high voltage driving from the ground of another driving system driven by low voltage. Therefore, for example, while grounding the engine main body 68 as ground for another drive system of low voltage driving, the engine main body 6 is grounded for the switch unit 21 for the electromagnetically driven valve.
8 is grounded to a different vehicle body or the like.

In such a case, the grounding bus bar 43 cannot be fixed to the engine main body 68 by the fixing part 60 such as a conductive metal screw as in the first embodiment. It is connected to the vehicle body and the like through the common ground lines 70a and 70b.

The reason why the two common ground lines 70a and 70b are used is that eight switch units 21 are arranged in two rows, but one ground line is bent and arranged. Alternatively, all the actuators 20a and 20b may be connected in common.

As described above, the plurality of switch units 21
Of the single-phase bridge circuits BR1 to BR4 are grounded through the common common grounding lines 70a and 70b. Can be greatly reduced.

In the first embodiment, the internal structure of the switch unit 21 shown in FIG. 2 has been exemplified. However, it goes without saying that another wiring structure may be adopted.

In the first embodiment, the wiring in the switch unit 21 is changed to the bus bars 31a to 31h, 36,
Although the configuration is made using the 39a to 39h and 43, the configuration may be made using, for example, a flexible printed wiring board (FPC).

Further, in each of the above embodiments, one switch unit 21 is provided for each of the two actuators 20a and 20b as shown in FIG.
For example, one switch unit 21 may be installed for each actuator 20a, 20b, or
A plurality of switch units 21 are integrally modularized, and this module is
a, 20b may be mounted at one time.

Furthermore, in the above embodiment, the fuse 52 is installed in the relay box RB, but may be installed in the switch unit 21.

Further, in the above embodiment, the ECU 25 is connected via the single connector 33 of the module body 21a.
Wire harness 35 connected to the relay box R
B, which was connected to the wire harness 38 connected to the ECU 25,
Connectors that are separately connected to the wire harness 38 connected to the relay box RB may be formed.

[0055]

According to the first and second aspects of the present invention, a drive circuit for driving an electromagnetic coil of an actuator is housed in a module main body, and this is used as an engine module directly to the actuator via a connector. Since connection is possible, a wire harness between the engine module and the actuator is not required.

According to the first aspect of the present invention,
The ground wiring is formed by being routed outside the module main body, and is fixed to the engine main body by a predetermined fixing component so as to be grounded. Therefore, a wire harness for grounding each drive circuit can be omitted. Therefore, not only the number of harness circuits is reduced, but also the number of electric wires as a whole is reduced.

According to the second aspect of the present invention, the grounding wire is grounded to a predetermined grounding component through a common grounding wire which is grounded in common with the grounding wire of another engine module. In addition, the number of electric wires can be reduced as compared with the conventional example in which individual electric wires are used for each drive circuit and are grounded. In particular, since the grounding part to which the common grounding line is connected is different from that of the engine body,
When the drive voltage of the electromagnetically driven valve is largely different from the drive voltage of another drive system, the respective ground sources can be separated, and so-called ground floating in a low-voltage drive system can be prevented.

In this case, since the voltage application wiring of the drive circuit is formed by the bus bar according to the fourth aspect or the wiring board according to the fifth aspect, the engine module can be configured with a simple structure.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing an engine module, an actuator, a power supply circuit, and an electronic control unit according to a first embodiment of the present invention.

FIG. 2 is a schematic sectional view showing an example of the engine module according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing an example of an operation of installing an engine module according to a second embodiment of the present invention on an actuator.

FIG. 4 is a schematic sectional view showing an actuator of a general electromagnetically driven valve.

FIG. 5 shows a conventional engine module, actuator,
It is a circuit diagram showing a power supply circuit and an electronic control unit.

[Explanation of symbols]

20a, 20b Actuator 21 Switch Unit 21a Module Body 22a, 22b, 23a, 23b Electromagnetic Coil 24a to 24h Switching Element 25 Electronic Control Unit (ECU) 31a to 31h, 36, 39a to 39h, 43 Bus Bar 35, 38 Wire Harness 41 Actuator Connector for connection RB Relay box

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshihiro Kumazawa 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi F-term in the Auto Network Engineering Laboratory Co., Ltd. (reference) 3G018 AA05 AB09 AB16 BA38 CA12 DA45 FA01 FA06 FA07 GA07 GA14 GA18 3G301 HA01 HA19 JA02 LA07 LC01 LC10 NB20 PE10Z PG02Z

Claims (5)

[Claims] 1. An engine module for driving an electromagnetic coil of an actuator for an electromagnetically driven valve of an engine, comprising: a module main body; and a drive circuit housed in the module main body and driving the electromagnetic coil of the actuator. A connector for directly connecting the drive circuit to a connector formed on the actuator side; and a predetermined circuit for the predetermined electronic control unit and a predetermined power supply circuit. Another connector for connection through a wire harness is formed. The drive circuit is formed by grounding wiring of the drive circuit being routed to the outside of the module body, and the engine body is formed by predetermined fixed components. An engine module, wherein the engine module is contact-fixed to a ground and is grounded. 2. The engine module according to claim 1, wherein the engine module drives an electromagnetic coil of an actuator for an electromagnetically driven valve of an engine, wherein the module module is housed in the module body. A drive circuit for driving the electromagnetic coil of the actuator; a connector for directly connecting the drive circuit to a connector formed on the actuator side; and Another connector for connecting to a control unit and a predetermined power supply circuit through a predetermined wire harness is formed, and the drive circuit is configured such that a ground wire of the drive circuit is connected to a ground wire of another engine module. Grounded to a predetermined grounding part different from the engine body through a common grounding wire for common grounding Engine module, characterized in that. 3. The engine module according to claim 1, wherein the electromagnetic coil includes an upper coil and a lower coil for opening and closing an electromagnetically driven valve, and wherein the drive circuit includes the power supply. A voltage application wiring for applying a voltage given from a circuit to the upper coil and the lower coil, a grounding wiring for grounding the upper coil and the lower coil, and a signal from the electronic control unit. An engine module comprising: a semiconductor switching element that is bridge-connected so as to individually turn on and off the application of a voltage through the voltage application wiring and the grounding through the grounding wiring to the upper coil and the lower coil. 4. The engine module according to claim 1, wherein the voltage application wiring is formed by a bus bar. 5. The engine module according to claim 1, wherein the voltage application wiring is formed on a wiring board.