CN1800616A

CN1800616A - Electrospray throttle valve control unit assembly for motorcycle

Info

Publication number: CN1800616A
Application number: CN 200610020104
Authority: CN
Inventors: 杨燕红; 肖传良; 蔡绍贵; 张德政; 林晓红; 黄道文; 廖蓉; 郭连
Original assignee: Sichuan Hongguang Auto Machinery Electric Co Ltd
Current assignee: Sichuan Hongguang Auto Machinery Electric Co Ltd
Priority date: 2006-01-04
Filing date: 2006-01-04
Publication date: 2006-07-12
Anticipated expiration: 2026-01-04
Also published as: CN100362222C

Abstract

The invention relates to an electric-injection air-saving gate control unit of motorcycle, comprising a main body, an air-saving gate axle, a air-saving gate plate, a rotational-support combination element, a torsion spring, and a flange surface. The flange surface has a idling channel, a idling control valve, a position sensor, a inlet pressure sensor, a inlet temperature sensor, and an electric control unit ECU, while said position sensor, inlet pressure sensor and inlet temperature sensor can directly transmit the signal to the ECU via pins, while the ECU can directly transmit the control signal via pins to the idling control valve. The invention combines the electric control unit, several sensors and idling control valve on the air-saving gate as air-saving gate integration to improve the anti-disturb ability of electric control unit, solve he compatibility of air-saving gate with 50-250cc motorcycle electric-injection system and reduce the cost.

Description

Electrospray throttle valve control unit assembly for motorcycle

One, technical field

The present invention relates to the electrospray throttle valve control unit that motor car engine is used, particularly the electrospray throttle valve control unit of 50-250cc motorcycle and MPV (Multi-Purpose Vehicle) (ATV).

Two, background technique

Because technology and cost mainly are the factors of cost, motorcycle electric spraying system is lower in medium and small discharge capacities such as 50-250cc, price, fail to be applied on the motorcycle of output and recoverable amount maximum always.Along with the growing interest of the whole world to environment, beginning in Europe that motorcycle was implemented Europe III in 2006 discharges, 2008 begin motorcycle is implemented to be equivalent to the state III discharging of Europe III in China, and each motorcycle producer falls over each other to adopt electric jet technology to become the incontrovertible fact to satisfy following emission request.

Its structural configuration of electric injection system that present stage is used for big discharge capacity motorcycle all is a distributing, the throttle body that system has, ECU, various sensor and control valve are arranged apart on motor and vehicle body, position transducer, IACV (Idle Air Control Valve) and some other mechanical parts often only are housed on the throttle body, and the core component electronic control unit (ECU) that is used for engine operation is controlled comprehensively is not installed in throttle body.On the one hand, because each part all needs special protection more than arranged apart the making of ECU, sensor, control valve, increased cost; On the other hand, along with the difference of engine model, throttle body mounting structure difference, the motorcycle electric spraying system of different model can not be compatible, makes the development cost of motorcycle electric spraying system increase; At last, because ECU and throttle body are arranged apart, then a large amount of real-time data signals of the sensor on ECU and the throttle body, control valve have to exchange by the lead transmission, cause antijamming capability to reduce.

Three, summary of the invention

The objective of the invention is the problem and shortage part that exists at prior art and a kind of strong anti-interference performance that provides, to compatible good, the electrospray throttle valve control unit assembly for motorcycle that cost is low of the motorcycle electric spraying system of different model.

The object of the present invention is achieved like this: a kind of electrospray throttle valve control unit assembly for motorcycle, comprise body, throttle plate pin, throttle blade, swing frame assembly parts, torsion spring, it is characterized in that, the integrated flanged surface that is provided with offers the idling passage on the described body on the flanged surface, and IACV (Idle Air Control Valve), position transducer, air inlet pressure sensor and intake air temperature sensor are installed; Also be fixed with electronic control unit ECU on the flanged surface; Above-mentioned position transducer, air inlet pressure sensor and intake air temperature sensor directly reach ECU with signal by pin.

Described swing frame assembly parts is two R swing frame assembly parties: its swing frame is provided with two acceleration cable mounting holes not equidistant with its center of rotation; Described body is provided with four structure hole for the support installation, and these four structure hole are with the rectangular layout of the center of rotation of swing frame.

Described throttle blade diameter is 16-34mm.

Than prior art, the outstanding feature and the beneficial effect of technical solution of the present invention are:

The present invention with IACV (Idle Air Control Valve), electronic control unit ECU and multiple sensors (position transducer, air inlet pressure sensor, intake air temperature sensor etc.) thus the flanged surface all by a unified size is integrated in forms throttle valve control unit assembly on the tb.Multiple sensors directly reaches ECU with signal by pin.Like this, cancelled original connection lead first and changed the distribution form that dispersion is provided with, thereby reduced cost; Second sensor pin directly is connected with ECU, has improved the antijamming capability of ECU system; Adopt the flanged surface of a unified size, can be adaptive at random with the motorcycle electric spraying system of different model; In the 16-34mm scope, select closure bore (being the throttle blade diameter), make the present invention can be applicable to 50-250cc motorcycle ATV car electric injection system; Owing to adopt two R swing frame assembly parties that two different backguy mounting points are arranged on it, therefore, all can satisfy the requirement that the swing frame assembly parts is rotated on prescribed direction for the motorcycle electric spraying system of different mounting points; Support optionally is installed on a plurality of different direction of center of rotation of swing frame, thereby guaranteed electric injection system throttle valve unit working in any direction.

Four, description of drawings

Fig. 1 is the schematic representation of throttle valve control unit assembly of the present invention;

Fig. 2 is a plan view of the present invention;

Fig. 3 Fig. 4 is respectively worm's eye view of the present invention shown in Figure 1, plan view;

Fig. 5 is the right elevation that the present invention shown in Figure 1 dissects from center line;

Fig. 6 is the plan view of the swing frame of shown in Figure 2 pair of R swing frame assembly parts;

Fig. 7 is the tb shown in Figure 2 plan view of (comprising flanged surface);

Fig. 8 is the sectional drawing along the A-A line of Fig. 7.

Five, embodiment

Fig. 1-4 illustrates, body 3 (referring to Fig. 7, Fig. 8) is gone up the flanged surface 2a that integrated setting has unified size, flanged surface 2a is provided with idling passage 2d, IACV (Idle Air Control Valve), position transducer are installed on the flanged surface, air inlet pressure sensor, intake air temperature sensor (

mounting point

2e, 2f, 2c, 2b that IACV (Idle Air Control Valve), position transducer, air inlet pressure sensor, intake air temperature sensor are arranged on the flanged surface), the first ECU of electronic control electricity is fixed on the flanged surface; The pin of above-mentioned all the sensors directly is connected with ECU, and signal is directly reached ECU by pin.Referring to Fig. 7, except that idling passage 2d, also offer the hole that is connected and fixed ECU on the flanged surface, and the stiffening rib (adding the dotted line part among Fig. 7) of projection.Also be provided with (setting up through bearing) throttle plate pin 5 on the body, throttle blade 6 is fixed on the throttle plate pin, and swing frame assembly parts and torsion spring 4 are arranged on the throttle plate pin.

Referring to Fig. 6, above-mentioned swing frame assembly parts adopts two R swing frame assembly parties 1, has two backguy mounting hole 1a, 1b equidistant with its center of rotation and the position is different (the equidistant difference that does not then constitute the arm of force) on the swing frame.

Referring to Fig. 4, body 3 is provided with four structure hole 2i for support 7 installations, and these four structure hole are with the rectangular layout of the center of rotation of swing frame.Acceleration cable one end is fixed on the structure hole of swing frame, and the Kong Houyu throttle that the other end passes on the support connects.Like this, can guarantee that the electrospray throttle valve unit can work in any direction.Two R swing frame assembly parties 1 are fixed on the throttle plate pin 5 to revolve the riveting mode.Referring to Fig. 3 Fig. 5, the clamp 8 in the gap that the bearing arranged outside of joint institute axle 5 is useful to adjust spool, clamp 8 is connected in the groove on the throttle plate pin, adjusts clamp thickness and can prevent that the return of throttle blade under the torsion spring effect is bad with the gap adjustment of axle to 0.1mm.Body is provided with idle adjusting screw 9 (Fig. 4).Throttle blade 6 diameters can be selected between 16-34mm, with adaptive 50-250cc motorcycle electric spraying system.IACV (Idle Air Control Valve), air inlet pressure sensor, intake air temperature sensor, position transducer and electronic control unit ECU etc. are installed on the flanged surface of tb, these component are installed in respectively in the relevant position on the throttle body, and its layout is different fully with existing motorcycle electric spraying system with structure.The gas-entered passageway of body 3 is divided into air inlet main passage, idling passage 2d.Throttle blade 6 is installed on the air inlet main passage through throttle plate pin 5, the charge flow rate of each operating mode of control motor, and IACV (Idle Air Control Valve) is installed on the idling passage 2d in the throttle body 3, the charge flow rate when the control motor is in idling.

Throttle body 3 has the structure hole 2i of four mounting brackets 7, support 7 can be installed in four different directions respectively, to satisfy the motor of different model.

Working procedure of the present invention is as follows:

The work of motorcycle engine is divided into several main operating conditionss such as state of starting operating, idling operation, acceleration and deceleration operating mode, medium and small load condition and full load mode, air fuel ratio value during the difference operating mode is different, corresponding injection time, oil spout are constantly and different during time of ignition, these data are stored among the ECU as MAP figure, also have among the ECU for realizing the control strategy written program simultaneously.

When engine operation, the driver drives throttle plate pin 5 and throttle blade 6 rotations by the acceleration cable pulling swing frame assembly parts 1 that is installed on the support 7, in this process, be integrated on the ECU circuit board position transducer on 2 can be constantly to the corresponding position signal of ECU feedback throttle blade 6; The pressure, the temperature transducer that are integrated on the ECU2 also can constantly be given the signal of ECU control unit feedback suction pressure, temperature level; The various sensors at other position of motor also can be given ECU control unit feedback signal.The ECU control unit can be judged the operating conditions of motor and calculate the air inflow of motor according to other sensor that is installed in temperature and pressure transmitter, the throttle position sensor on the throttle body and is installed in other places, obtain injection time, the moment and time of ignition according to the program that is provided with in the ECU control unit (MAP figure) again, control the oil sprayer injected fuel and be mixed into cylinder from the gas-entered passageway leaked-in air, the control ignition is lighted a fire at Best Times, and mixed gas burns in cylinder, expands, doing work provides driving dynamics to motorcycle.

When motor was in the high idle speed operating mode, Engine ECU also can be opened the idling bypass valve that is integrated on the throttle body, increased air input of engine by air, and ECU obtains injection time, the moment and time of ignition again according to air inflow again.

As long as unclamp backguy when the driver need be slowed down, throttle blade 9 will be got back to initial position automatically under the effect of torsion spring 10.

This motorcycle electric spraying system can not only satisfy motorcycle Europe III, state III emission standard in different operating modes, can also improve motor Economy (saving fuel oil), power character (improving power, moment of torsion) and reduce cost simultaneously.

Among the present invention, throttle valve control unit assembly includes IACV (Idle Air Control Valve) and multiple sensors, if be IACV (Idle Air Control Valve) not to be installed or/and do not install the air-throttle assemble of stating sensor only, still belongs to protection domain of the present invention.

Claims

1, a kind of electrospray throttle valve control unit assembly for motorcycle, comprise body, throttle plate pin, throttle blade, swing frame assembly parts, torsion spring, it is characterized in that, described body (3) is gone up the integrated flanged surface (2a) that is provided with, and offers idling passage (2d) on the flanged surface, and IACV (Idle Air Control Valve), position transducer, air inlet pressure sensor and intake air temperature sensor are installed; Also be fixed with electronic control unit ECU on the flanged surface; Above-mentioned position transducer, air inlet pressure sensor and intake air temperature sensor directly reach ECU with signal by pin.

2, throttle valve control unit assembly according to claim 1 is characterized in that, described swing frame assembly parts is two R swing frame assembly parties (1): its swing frame is provided with two acceleration cable mounting holes not equidistant with its center of rotation (1a, 1b); Described body (3) is provided with four structure hole (2i) for support (7) installation, and these four structure hole are with the rectangular layout of the center of rotation of swing frame.

3, throttle valve control unit assembly according to claim 2 is characterized in that, described swing frame assembly parts (1) is fixed on the throttle plate pin (5) to revolve the riveting mode.

4, throttle valve control unit assembly according to claim 3 is characterized in that, the useful clamp (8) that adjusts the gap of Control Shaft of the bearing arranged outside on the described throttle plate pin (5), clamp are connected in the groove on the throttle plate pin.

5, throttle valve control unit assembly according to claim 4 is characterized in that, described body (3) is provided with idle adjusting screw (9).

According to the described throttle valve control unit assembly of the arbitrary claim of claim 1-5, it is characterized in that 6, described throttle blade (6) diameter is 16-34mm.