Throttle valve control device

[Detailed Description of the Invention]

[Field of the Invention] The present invention relates to a throttle valve IIJIII device, especially a compact throttle valve controller suitable for computer control.

[Background of the Invention] become familiar and come out and it is so that control of car motor may be performed by the computer in recent years, and a throttle valve is also one of a series of controlled instruments above all. And the thing of the form of versatility [ actuator / which operates a Slots]-Le valve using an electric means ] is proposed, a motor becomes a part of throttle actuator, and the many are incorporated via a throttle valve, one or a deceleration mechanism, and a speed-increasing system. A device explains this conventionally which is shown in Drawing 3. Drawing 3 (a) -- the side view of a throttle device -- similarly Drawing 3 (b) is a top view. In the figure, Throttle device inserts throttle valve 3 in the inside of circulation way 2 of air, it makes to rotate this throttle valve 3 via throttle shaft 4 into a basal principle, and motor 5 is formed as a source of a drive of this throttle shaft 4. Therefore, logic circuits which give instructions to the power circuit and motor for driving the power supply which is not illustrated via Power supply distribution [16 on motor 5 or a motor serve as another object. 7 is an initial opening detection switch, and it is constituted so that this may be inputted into an operation part via initial quantity degree detection switch signal wire 8.

[The problem of a background art] Since a throttle device is formerly which has the above-mentioned composition only a mere operating section in the case of a device and the power circuit and operation part to this are another object, Inclusion not only by even the throttle device which is an actuator taking many wiring but an operation part is not easy, and has a fault used as the increase of load of an operation part.

[Objects of the Invention] It is made in order that the present invention may solve account Dark question of -F, and the throttle valve actuator itself is made intelligent, and it aims at providing the throttle valve controller which can make combination with an operation part easy.

Outline 1 of [invention ] 1'□ Not While becoming intelligent by including at one the power circuit which drives a motor, and the logic circuit which does a control operation in a throttle actuator in the present invention, It is going to connect between this throttle actuator and operation part that were made intelligent with a serial signal and a line.

Example 1 of [invention With reference to drawings, an example is described below. Drawing 1 is an one example lineblock diagram of the throttle valve controller by the present invention. In Drawing 1, the same numerals are attached about the same portion as Drawing 3, and explanation is omitted. And the case where the drive motor which is a throttle actuator is a stepping motor is shown by this example. In a figure, 5-1 is a stepping motor, A is a logic circuit, and it consists of the microprocessor and the interface for optical fibers of a one chip, for example. Serial Trust 8 *5(7Tlr10 and 1 Show 11 fl bs I > ')> I' control which consists of an optical fiber for data communication in 9 It is connected to the operation part for 1 *. Therefore, the state of the instructions and the throttle actuator from the operation part for engine control to a throttle actuator is performed via this serial signal and line 9. 10 is a signal wire from the initial opening detection switch of a throttle valve, and this is inputted into logic circuit A. B is a power circuit, processes and amplifies the signal inputted from the above-mentioned logic circuit A, and supplies it to stepping motor 5-1 via wiring 11. Power circuit B is connected to the power supply which is not illustrated by wiring 12. Thus, it is if a power circuit and a logic circuit are included in the throttle actuator itself at one, If only the throttle actuator can function as a terminal of operation parts for engine control, such as EFI, and it unifies the operation part for engine control, and the interface in that case, Since between the batteries which are the wiring for signals and a power supply since connection can be easily done only in one optical fiber and it becomes unnecessary to, take into consideration the influence not only of the number of wiring being lessened but a noise as a result becomes near, the wiring for power supplies itself can be shortened. Drawings 2 are other example lineblock diagrams of the throttle valve controller by the present invention. In Drawing 2, the same numerals are attached about the same portion as Drawing 1, and explanation is omitted. In this example, OC motor is used as a motor for actuators. In a figure, it is a sensor (for example, potentiometer) which exchanges 5-2 for OC motor and by which 13 exchanges a throttle opening for an electric signal. In this case, signal wire 10 from a throttle opening detection switch is not necessarily required. Other composition is the same as that of the case of Drawing 1. It is clear contents' of logic circuit A and power circuit B to differ from the above-mentioned thing. Effect] of E invention As explained above, according to the present invention, the power circuit and the logic circuit which does a control operation for driving a motor are united with a throttle actuator, Since it constituted so that connection with an operation part might be connected by the serial signal and a line, for example, an optical fiber, It can have enough a function as a terminal of the operation part for engine control, Mill of the pair"-evening can be reduced on the occasion of other transmission control, cruise control, etc., and the Slower 1~Le valve control system with which the number of wiring moreover does not require the extensive improvement of a device few can be provided. 4, 1in pipe.[explanation of a drawing The example lineblock diagram of Earl and Drawing 3 of the one example lineblock diagram of the throttle valve a-control device according [ Drawing 1 ] to the present invention and Drawing 2 are formerly example figures of composition of a device. 1 ... Slower 1~Le device 2 [ ... Throttle shaft 5 / ... Motor 6 / ... Current supply wiring 7 / ... Initial quantity degree detection switch 8 / ... Initial opening detection switch signal wire ] ... Air circulation way 3 ... Throttle phi valve 4 9 ... The serial signal and line 10 by an optical fiber ... Signal wire 11.12 ... Wiring 13 ... Sensor = 7-