KR19980042228A - Neutral start switch integrated electronic control unit - Google Patents

Abstract

SUMMARY OF THE INVENTION The present invention is a compact integrated unit of a neutral start switch for an automatic transmission and an electronic control device. The control unit includes a plurality of control units including a microcomputer incorporating an automatic transmission control program. Is a structure in which an electronic control unit (ECU) consisting of a substrate 50 on which elements 51a and a plurality of elements 51b are disposed, and a neutral start switch NSW connected to a microcomputer are integrated. Has a rotor 40 and a contact switch SW1 and a contact switch SW2 actuated by its rotation, and the substrate 50 and the rotor 40 have their intermediate walls in a case 10 for receiving them. (13) sandwiched in parallel with each other, the substrate 50 is an intermediate wall 13, the neutral start switch integrated electronic control unit is tightly shielded with respect to the contact switch (Oiltight) to be.

Description

Neutral start switch integrated electronic control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control unit of an automatic transmission, and more particularly to a control unit integrating a neutral start switch mounted on an automatic transmission body and an electronic control device for shift control.

The conventional automatic transmission is configured to control the hydraulic control device inserted into the main body by an electronic control device and to automatically shift within a selected range by an operation operation. The automatic transmission main body and the electronic control device are It is mounted in each place away from the vehicle. Both of these devices have sufficient quality control as individual parts, but both must also perform their desired performance when finally connected, so quality control in the connected state is also necessary. However, the connection between the automatic transmission body and the electronic control device is made when the vehicle is mounted, so that the automatic transmission main body and the electronic control device assembled up to that point cannot be managed in a one-to-one correspondence. After mounting, adjustments must be made to adjust them to fit. For this reason, comprehensive quality control of automatic transmissions requires a process water. In addition, as described above, the wire harness connecting the two is also long because the place of mounting on the vehicle is different, so it is susceptible to electromagnetic noise and requires a process water for color scheme. There are various problems, such as the need for space.

Therefore, attempts have been made to integrate the automatic transmission body and the electronic control device and to solve the above problems. As an example of this, there is a technique disclosed in Japanese Patent Application Laid-open No. Hei 5 (700). In this technology, in order to output the range position selected by the vehicle driver's select operation to the electronic control device as an electric signal, the electronic control device is conventionally placed in a case of a neutral start switch mounted on an automatic transmission casing. By inserting, the automatic transmission body and the electronic control unit are integrated.

As described above, the neutral start switch not only outputs the range position as an electrical signal to the electronic controller, but also connects and disconnects a driving circuit for driving a starter motor or turning on a reverse lamp. Since the connection and dissociation between the fixed contact point and the movable contact point accompanied by mechanical opening and closing operations are indispensable, metal contact can be avoided due to wear due to the sliding of the contact points. none. Therefore, in order to reduce the wear and operation resistance, grease is applied to the contact point to reduce the coefficient of friction when the fixed contact point and the movable contact slide, but as is well known, mechanical contact points Arcs are generated when contacting or dissociating, so that grease, metal powder or mixtures of them are scattered around the arc. These by-products are attached to the circuit board of the electronic control apparatus and foul the substrate by the accumulation thereof, which adversely affects the circuit operation. However, in the prior art, the recognition of such a problem has not been achieved. Therefore, there is no special solution.

Therefore, the present invention has as its first object to protect the substrate of the electronic control device from the attachment of fly-bye accompanying the opening and closing operation of the switch contact in integrating the electronic control device and the neutral start switch as described above.

Moreover, a 2nd object of this invention is to shorten the radial length of a neutral start switch part, and to miniaturize the whole control unit by achieving said 1st objective.

Further, a third object of the present invention is to reduce the thickness of the neutral start switch unit while achieving the above-mentioned first object, thereby miniaturizing the entire control unit.

Further, the fourth object of the present invention is to ensure that the electronic influence accompanying the operation of the drive circuit contact of the neutral start switch does not reach the electronic control device while achieving the first object.

A fifth object of the present invention is to precisely correspond to the operation of the position signal contact with the operation of the contact point for the driving circuit while achieving the fourth object.

In addition, a sixth object of the present invention is to shorten the connection between the neutral start switch and the electronic control device while achieving the fourth object.

In addition, a seventh object of the present invention is to simplify the color scheme between the neutral start switch and the electronic controller while achieving the first object.

The eighth object of the present invention is to increase the oil tightness of the electronic controller case while achieving the seventh object.

In addition, an object of the present invention is to maintain the electronic control device at a low temperature while improving the maintenance property of the electronic control device while achieving the seventh object.

In addition, the present invention has a tenth object of reducing the thickness of the entire control unit while achieving the seventh object.

The eleventh object of the present invention is to shorten the widthwise direction of the entire control unit while achieving the tenth object.

1 is a cross-sectional view showing a first embodiment of the control unit of the present invention;

2 is a front view of a case (Case) in the embodiment;

3 is a rear view of the case;

4 is an inner view of a rear cover according to the embodiment;

5 is an external view of a front cover according to the embodiment;

6 is an inner view of the front cover,

7 is a side view of the front cover,

8 is a front view of a rotor according to the embodiment;

9 is a side cross-sectional view of the rotor,

10 is a rear view of the rotor,

11 is a layout explanatory diagram showing a connection relationship between an automatic transmission basic body and a shift device of the control unit;

12 is a sectional view showing a second embodiment of the control unit of the present invention;

13 is a cross-sectional view showing a third embodiment of the control unit of the present invention;

14 is a sectional view showing a fourth embodiment of the control unit of the present invention;

Fig. 15 is a sectional view showing the fifth embodiment of the control unit of the present invention.

Explanation of symbols for main parts of the drawings

NSW: Neutral Start Switch ECU: Electronic Control Unit

10 case 11 switch case

12: electronic control case 13: intermediate wall

40: rotor 50: substrate

50a: overlap portion 51a, 51b: element

Pp: Position signal contact Pr, Ps, Ps': Contact point for driving circuit

C: Automatic transmission casing L: Shift lever

M: Manual valve S: Manual shaft

A neutral start switch integrated electronic control unit incorporating an electronic control device having a microcomputer with an automatic shift control program and a neutral start switch for inputting a select position signal for shift control to the electronic control device. The electronic control device is composed of a substrate in which a plurality of elements are disposed, and the neutral start switch has a rotor and a contact operated by the rotation of the rotor, and the substrate and the rotor have them. Neutral start switch integrated electronic control unit, characterized in that the housing is placed in parallel with each other along the middle wall of the case, and the substrate is at least tightly shielded from the contact by the intermediate wall. The whole can be miniaturized.

According to the second aspect of the invention, the radial length of the neutral start switch portion is shortened, and as a result, the entire control unit as an assembly of the neutral start switch and the electronic control device can be miniaturized.

According to the third aspect of the invention, the thickness of the neutral start switch portion can be reduced, and as a result, the entire control unit as an assembly can be miniaturized.

According to the fourth aspect, since the substrate is placed at a position away from the contact point for the driving circuit, the change in the magnetic field caused by the large current change caused by the opening and closing of the contact point for the driving circuit is a noise as the electronic controller. The likelihood of affecting the signal of the controller is reduced, and the operation reliability of the electronic controller is improved.

According to the fifth aspect, the contact point for the driving circuit is disposed on the radially outer circumferential side of the rotor within the rotational movement trajectory range of the rotor, so that the rotational movement angle of the rotor The position of the contact point can be set accurately as long as the main direction distance with respect to) can be set, and the starter motor or reverse lamp can be surely operated in a predetermined range.

According to the sixth aspect, since the position signal contact, which is indispensable for connection with the substrate, is disposed at a position close to the substrate, the wiring for connecting the terminal of the substrate and the position signal contact can be shortened. It is possible to reduce the possibility of picking up noise from the wiring portion.

According to the seventh aspect of the present invention, there is no need to join the wiring between the substrate and the position signal contact over the case, and the number of processing steps required for the connection of the wiring can be reduced, thereby eliminating connection defects.

According to the structure of claim 8, since the manual shaft is arranged to penetrate only the switch case of the control unit, the movable member penetrating the inside and the outside of the electronic control case is eliminated, and the electronic control case side is surely waterproof. do.

According to the ninth aspect of the present invention, since the electronic control device case is disposed at a position away from the automatic transmission case, the heat inside the automatic transmission does not heat a computer or the like in the electronic control device, which is advantageous in terms of heat. In addition, since the electronic control device case is disposed on the opposite side to the automatic transmission case with respect to the switch case, even in the event of a failure of the electronic control device, it is possible to easily replace only the board and improve the workability of the maintenance.

According to the tenth aspect, the assembly can be made as thin as possible and averaged to the thickness of the other part, which can not be thickened by the lap in the axial direction between the rotor and the substrate. It is possible to miniaturize the thickness of the control unit as a whole.

According to the structure of Claim 11, since the board surface direction length of a board | substrate can be shortened, the miniaturization which narrows the width | variety of the control unit as an assembly is attained.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described according to drawing. 1 to 11 show the first embodiment and as shown in the cross section in FIG. 1, the electronic control unit ECU integrated with the neutral start switch NSW includes a case 10, a rear cover 20, and a front cover ( 30), the rotor 40, and the board | substrate 50 are comprised. Hereinafter, these components and their correlations will be described in detail in order.

First, the case 10 is made of a resin material having good electrical insulation and has a fan-shaped switch case 11 on the back side and a rectangular electronic control device on the front side, as shown in FIG. The case 12 is woven together, and the case 12 is separated by the intermediate wall 13 (refer FIG. 1). In the switch case 11 of the case 10, the fan-shaped copying part is shifted from the electronic control case 15, so that the electronic control case 12 and the switch case 11 are the rotor 40. The overlapping portions 10a overlapping each other in the axial direction in a range corresponding to the rotational trajectory of (Fig. 2, the shape of the portion viewed from the front is the bottom part and the both parts are straight and the upper part is arcuate. Shown in FIG. 1 as a generally rectangular shape), and the sleeve shaft portion 43 (see FIG. 1) of the rotor 40 is rotatably inserted in the position of the yarn portion and rotated around A hole 19 having a stage for inserting an oil seal 6 (see FIG. 1) to seal the gap is formed. Therefore, the sleeve shaft portion 43 has a configuration that does not pass through the electronic control device case 12. On the other hand, on the side of the electronic control device case 12, a connector socket 14 and a connector socket 15 are formed, in which a signal protruding into two rectangular portions is received. have. A pair of mounting flanges formed with holes through which bolts for fixing the case 10 to the automatic transmission casing C (see Fig. 1) are formed at an almost diagonal position of the electronic control case 12. ; 16) is installed to protrude.

Next, the rear cover 20 is made of the same material as that of the case 10, and is indicated by the shape of the switch case 11 of the case 10 as shown in FIG. 4. It is fan-shaped and has a shape in which the position is determined by fitting it into the case 10 by In low coupling. Like the case 10, a hole 21 is provided with a step for inserting the sleeve shaft portion 43 of the rotor 40 and inserting the oil seal 6 sealing the circumference in the fan-shaped plain portion of the rear cover 20. ) Is formed so that the connector socket 22 of the integral molding protrudes. The sealing ring 23 for the O-ring fitting around the periphery of the case 10 is formed on the fitting face rim with the switch case 11.

The front cover 30 has a rectangular shape made of a material such as aluminum having good thermal conductivity, and as shown in FIGS. 5 to 7, respectively, the outer surface, the inner surface, and the side surfaces of the heat dissipation fin having multiple tanks in parallel. (31) or the inner surface of the heat transfer projections (32) protruding integrally formed, the inner surface side case 10 with the electronic control case 12 of the custom-made border around the perimeter A sealing ring (33) for O-ring fitting is formed. The plurality of installation flanges 34 intermittently protruding along the circumference are tightened to the front side of the case 10 by screwing.

The rotor 40 is made of the same material as the case 10, and has a hole through which a manual shaft is fitted at one end of an arm part as shown in FIGS. 8 to 10, respectively, in front, side cross-section and back. The sleeve shaft part 43 which has 42 is comprised. On the front and back of the arm portion 41, a rectangular block-shaped conductor 45a having a radially long arm portion 41 having a coil spring 44 disposed therein for pressing behind the arm portion 41 is provided. 45 f is filled so that it may move to an axial direction. Of these conductors 45, four conductors 45a to 45d are arranged in pairs in the radial direction on the front side of the arm portion 41, and are arranged so as not to overlap each other in the border direction, and two conductors ( 45e) and the conductor 45f are arrange | positioned in the radial direction at the back side of the arm part 41, and are arrange | positioned. And the radially inner part of the conductor 45a, the conductor 45c, and the radially outer part of the conductor 45b and the conductor 45d overlap in the rim direction.

The hole 42 of the sleeve shaft 43 is a hole having a two-sided width in which a portion almost half of its length is cylindrical in shape, and the other half of the length is left in parallel with the main surface rather than a cylinder. It is. The rotor 40 allows the sleeve shaft portion 43 to be rotatably fitted to the hole 19 having the end of the case 10 and the hole 21 having the end of the back cover 20, and the arm portion ( 41 is disposed in the space surrounded by the case 10 and the back cover 20 in the shape surrounded by them. A pair of oil seals 6 are sealed between the shaft circumference of the sleeve shaft portion 43, the holes 19 with both ends, and the holes 21 with both ends. In addition, an electrically insulating grease is enclosed in the space, and wear of the switch section SW1 and the switch section SW2 for the driving circuit and the position signal, that is, the fixed contacts Pp, Ps, Ps', Pr and the rotor 40 It acts as a lubricant to prevent abrasion of conductors 45a to 45f provided in the.

As shown in FIG. 1, a drive circuit switch SW1 is formed between the rotor 40 and the rear cover 20. As shown in FIG. 4, the switch SW1 for the driving circuit is formed by tapping from a connecting plate 24 having a shape of a plate filled in the back cover 20 and exposed to the inner surface of the back cover 20. Two pairs of starter motor circuit contacts (Ps) and (Ps'), a pair of reverse lamp lighting circuit contacts (Pr), and the arm portion 41 of the rotor 40 are fixed to form a pair It consists of the conductor 45e and the conductor 45f which mutually connect. In this embodiment, the connection line 24 is used as the terminal 28 introduced into the connector socket 22 as it is. In this way, the connection line 24 is completed in the rear cover 20 only by the rear cover 20 itself, independent of the case 10 returning from the connector terminal 28 to the same terminal. Configure

In addition, the position signal switch unit SW2 is formed between the rotor 40 and the case 10. In this embodiment, the position signal switch unit SW2 is fixed to the inner surface of the switch case 11 of the case 10. It consists of many contact point Pp formed by tapping from the connection board 17 of the said large plate shape, and the conductor 45a-45d fixed to the arm part 41 of the rotor 40. As shown in FIG. The connecting line 17 integrated with the contact point Pp is drawn out to the pad portion for board connection in the electronic control device case 12 through the middle wall 13 of the case 10, so that the wire bonding ( Wire bonding) or the like is connected to the terminal portion of the substrate 50. In this way, the connection line 17 fulfills the function of directly connecting the neutral start switch NSW and the electronic control unit ECU inside the case 10.

The board | substrate 50 which comprises an electronic control apparatus is comprised from the ceramic material etc. which are excellent in heat resistance, and, as is well-known, the board | substrate 50 uses various circuit elements, such as a microcomputer chip, a transistor, a resistor, and a capacitor, with respect to the printed circuit formed in the board surface. It is arranged in such a way that it is arranged in such a manner as to be brought into contact with an end in the electronic control device case 12, and the terminal connection of the two connector sockets 14 and the connector sockets 15 is provided at the pad portion. It is connected to Zen group 18 by the same means of wire bonding. Each terminal connection line group 18 is led to the inside of the connector socket 14 and the connector socket 15 through the case 10, and serves as their connection terminals. The connector socket 14 and the connector socket 15 are connected to a solenoid valve, various sensors, sensors of each vehicle part, and an engine control device of a hydraulic control device disposed on an automatic transmission body.

The plate surface of the board | substrate 50 is arrange | positioned in parallel with the rotational motion orbital surface of the rotor 40, and is superposed | polymerized with each other by looking perpendicularly to the rotation center axis direction of the rotor 40, ie, a plate surface and a rotational orbital surface. The substrate has an overlap portion 50a on the substrate side corresponding to the overlap portion 10a of the case. The substrate 50 disposed as described above is disposed on both front and back surfaces of the element 51a and the overlap portion 50a, which are relatively short due to resistances in a plurality of elements, and the like, so that the capacitors, etc. The tall element 51b is disposed on the substrate portion 50b other than the overlap portion 50a. In addition, the gap between the substrate 50 and the front cover 30 is filled with a resin having good thermal conductivity, thereby eliminating intervening air layers, and functioning as heat sink for heat generated from the substrate 50. It is easy to convey to the front cover (30).

Thus, according to the arrangement of the above embodiment, the confectionery produced by the vehicle transmission and the electronic control device being arranged apart can be solved. In particular, since the contact point of the substrate 50 and the neutral start switch NSW is completely separated by the intermediate wall 13 of the case 10, the operation of the neutral start switch NSW adversely affects the electronic control unit ECU. If you do not get lost.

In addition, the radial length of the portion of the neutral start switch (NSW) is shortened, and as a result, the neutral start switch (NSW) and the electronic control unit (ECU) can be miniaturized as an assembly. In addition, since the substrate 50 is placed at positions away from the driving circuit contacts Ps, Ps', and Pr, the magnetic field change caused by the large current change by opening and closing of the contact points for the driving circuit. Is less likely to affect the signal of the ECU as noise and the reliability of the operation of the electronic controller is improved. In addition, since the contact circuits Ps, Ps', and Pr are arranged on the outer circumferential side in the radial direction of the rotor rotational movement trajectory, opening and closing of the contact with respect to the rotational movement angle of the rotor 40 is performed. The stroke can be held large compared with the inner circumferential side, so that the opening / closing timing of the contact circuits Ps, Ps', and Pr for the driving circuit can be precisely adjusted with respect to the position signal contacts Pp. It can be adjusted to match the switching timing. Therefore, it is possible to prevent the difference between the starter motor and the reverse ramp operation timing that operate by opening and closing the contact for the driving circuit.

In addition, since the position signal contact point Pp, which is indispensable to connect with the board | substrate 50, is arrange | positioned near the board | substrate 50, the wiring which connects the terminal of the board | substrate 50 and the position signal contact point Pp can be shortened. As a result, the cost can be reduced and the possibility of picking out noise from the wiring portion can be reduced. In addition, the wiring between the substrate 50 and the position signal contact point Pp does not need to be joined between the case 11 and the case 12, and the number of processing steps that need to be pulled around the wiring can be reduced to eliminate wiring defects. .

In addition, the movable shaft penetrating the inside and outside of the electronic control device case 12 is removed so that the manual shaft S penetrates only the switch case 11 of the control unit, and the electronic control device case 12 side is removed. Waterproofing is ensured. In addition, since the automatic transmission casing C is disposed on the opposite side with respect to the switch case 11, the substrate 50 does not disassemble the control unit from the automatic transmission casing C even in the event of a failure of the ECU. It is possible to simplify the replacement of only the substrate 50 while improving the workability of the maintenance.

In addition, since the thickness of the overlap portion 10a, which cannot be thickened by the lap in the axial direction between the rotor 40 and the substrate 50, can be made as thin as possible, and can be averaged to the thickness of other portions. The thickness of the control unit can be made thin as a whole, and furthermore, since the length of the board surface direction of the substrate 50 can be shortened, the size of the control unit can be reduced in size.

The control unit configured as described above is fixed to the automatic transmission casing C as shown in Fig. 1, and the shift lever L on the shifting device side of the shifting device side as shown in Fig. 11 shows a weak relationship with the operating mechanism. The rotation around the axis (X) is transmitted to the outer lever (A) on the side of the automatic transmission body via the control wire (T) so that the manual shaft (S) rotates. Then, the rotation of the manual shaft S rotates the rotor 40 (shown in the drawing as an imaginary line) attached thereto. The figure shows a state in which the shift lever L is in the neutral range N position. From this state, when the lever L is pushed forward, that is, in the reverse range R or parking range P position direction, the lever L is pressed by the wire T and the out lever A ) Rotate in the direction of the white arrow shown and drag the lever L backwards to the drive range D, Third range 3, Second range 2, and Low range L. Pulled by the wire T, the out lever A rotates in the direction of the black arrow shown. According to this operation, the switching operation of the manual valve (M) in the valve body (B) of the hydraulic control device occurs at the same time as the contact of the neutral start switch.

In this operation, on the neutral start switch (NSW) side, the starter contacts Ps and Ps' shown in FIG. 4 at the neutral range N and parking range P positions the circuit through the conductor 45e of the rotor 40. In the reverse range R, the reverse contact point Pr constitutes a circuit through the conductor 45f, and the position signal switch unit SW2 corresponds to the neutral range N and the parking range P position by closing the same contact point. A signal or a reverse range R position signal is output to the substrate 50. In addition to the drive range D position, only the position switch unit SW2 is operated at each of the ranges 3, 2, and L positions, and a corresponding position signal is output to the substrate 50 through the contact line 17 by the closed circuit configuration of those contacts. do.

12 shows a second embodiment of the present invention. In this embodiment, unlike the first embodiment described above, the switch section SW has a single sided arrangement with respect to the rotor 40. In other words, the neutral start switch NSW is a contact point P embedded in the intermediate wall 13 of the case 10 in correspondence with the rotational movement trajectory of the conductor mounted on the rotor 40 as in the first embodiment. Has The concrete structure with these contact conductors is the same as that of 1st Embodiment. In the rest of the configuration, since it is the same as in the first embodiment, the same reference numerals are used to replace the description.

In this arrangement, when the area of the overlap portion 10a becomes wider and the outer area of the case 10 is the same as compared with that of the first embodiment, the space in which tall elements can be disposed is limited. However, since the thickness of the rotor 40 becomes easy to thin, the overall thickness can be thinned. Moreover, the stroke of the outer peripheral side contact can be made larger.

13 shows a third embodiment of the present invention. In this embodiment, the switch portion SW is arranged on one side with respect to the rotor 40 as in the second embodiment, but the arrangement position is different from the rear cover 20. Since the rest of the configuration is the same as in the second embodiment, the same reference numerals are used to replace the description.

The advantage of this arrangement is that the contact is far from the substrate 50, so that the magnetic field change caused by the opening and closing of the switch contact with the signal of the electronic control unit (ECU) is reduced as noise and the electronic control unit (ECU) The reliability of the operation is improved.

14 shows a fourth embodiment of the present invention. In this embodiment, the switch SW is one-sided with respect to the rotor 40, and the arrangement position thereof is the rear cover 20, as in the third embodiment, but the intermediate wall 13 is the case 10. ) Are different from each other. Since the rest of the configuration is the same as in the third embodiment, the same reference numerals are used to replace the description.

According to this arrangement, since the intermediate wall 13 is a different member, it is unavoidable to arrange the seal 7 between the case 10 and the intermediate wall 13 in a tight manner. Although there is a point, the substrate 50 is made of a material having excellent electromagnetic shielding property by using the other member and the point that does not require insulation for a specific arrangement. The noise blocking effect of the electronic circuit can be obtained. In this arrangement, the scattering of grease or metal wear to the electronic control device case 12 side is alleviated by blocking with the rotor 40.

Finally, Fig. 15 shows a fifth embodiment of the present invention. This embodiment has substantially the same configuration as the first embodiment, but differs in that the contact points for the driving circuits are arranged close to the inner circumferential side in the rotational motion trajectory of the rotor 40. The purpose of such an arrangement is to counteract the noise of keeping each contact circuit contact as far as possible from the substrate 50.

In other words, even in the case of taking any of the above-described embodiments, the substrate after solving the attachment workability, color number, and quality control confectionery caused by the automatic transmission and the electronic control unit (ECU) are disposed in common. Neutral start switch (NSW) by completely separating the contacts Ps, Ps', Pr, and Pp of (50) from the neutral start switch (NSW) by the intermediate wall 13 of the case 10. It is possible to avoid that the metal powder generated by the contact wear of the negative influence on the operation of the electronic control unit (ECU).

As mentioned above, although this invention was demonstrated in detail based on each embodiment, this invention is not limited only to the disclosure of the said embodiment, It can implement by changing each specific concrete structure within the range of the matter as described in a claim. Needless to say.

According to the present invention, it is possible to solve problems caused by the automatic transmission and the electronic control device being arranged apart. In addition, since the contact between the substrate and the neutral start switch is completely separated by the intermediate wall, the operation of the neutral start switch does not adversely affect the electronic controller.

Claims (11)

A neutral start switch integrated electronic control unit incorporating an electronic control device having a microcomputer with an automatic shift control program and a neutral start switch for inputting a select position signal for shift control to the electronic control device. The electronic control device is composed of a substrate in which a plurality of elements are disposed, and the neutral start switch has a rotor and a contact operated by the rotation of the rotor, and the substrate and the rotor have them. Neutral start switch integrated electronic control unit, characterized in that the housing is placed in parallel with each other along the middle wall of the case, and the substrate is at least tightly shielded from the contact by the intermediate wall. . The neutral start switch integrated electronic control unit according to claim 1, wherein the contacts of the neutral start switch are disposed on both sides of the rotor. The neutral start switch integrated electronic control unit according to claim 1, wherein a contact of the neutral start switch is disposed on one side of the rotor. The neutral start switch integrated type according to claim 1, wherein the contact of the neutral start switch is composed of a position signal contact point and a driving circuit contact point, and at least the driving circuit contact point is disposed on a side opposite to the substrate with the rotor. Electronic control unit. The neutral start switch integrated electronic control unit according to claim 4, wherein the contact point for the driving circuit is disposed on a radially outer circumferential side in a range of the rotational movement trajectory of the rotor. 5. The neutral start switch integrated electronic control unit according to claim 4, wherein the position signal contact point is disposed between the intermediate wall and the rotor. The method of claim 1, wherein the case is composed of an electronic controller case for accommodating a substrate and a switch case for accommodating a rotor, the electronic controller case is a part of the neutral start switch, characterized in that a part of the switch case Electronic control unit. The neutral shaft of claim 7, wherein the manual shaft connected to the rotor penetrates only the switch case by connecting one end to a shift lever and the other end to a manual valve. Start switch integrated electronic control unit. 8. The neutral start switch integrated electronic control unit according to claim 7, wherein the electronic control device case is disposed on the side opposite to the automatic transmission casing with respect to the switch case. 8. The electronic control device case and the switch case of claim 7, wherein the electronic control device case and the switch case have overlapping portions overlapping each other in the axial direction in a range corresponding to the rotational movement trajectory of the rotor, A relatively short element is disposed in a portion of the case that is located at the overlap portion, and a relatively tall element is disposed in a portion other than the overlap portion. 11. The neutral start switch integrated electronic control unit according to claim 10, wherein the device is disposed on both sides of the substrate.