CN214145676U

CN214145676U - Gasoline engine for small displacement vehicle carrying automatic transmission

Info

Publication number: CN214145676U
Application number: CN202023003759.5U
Authority: CN
Inventors: 时海朝; 郭万山; 吴泽荣; 翟磊; 赵凯绅; 赵辉; 张小诚; 侯沙沙
Original assignee: Ruiqing Automobile Engine Technology Co ltd
Current assignee: Ruiqing Automobile Engine Technology Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-07
Anticipated expiration: 2030-12-10

Abstract

The utility model belongs to the technical field of the engine, especially, relate to a carry on automatic gearbox's gasoline engine for small discharge capacity vehicle, including the engine body, the engine body includes air intake manifold, bent axle and engine ECU, engine body outside is equipped with engine housing, air intake manifold's air inlet is equipped with the electron throttle body, the control unit and the engine ECU electricity of the electron throttle body are connected, the bent axle output is equipped with the starting disc, the starting disc is kept away from this side of engine and is equipped with flexible dish, be equipped with induction zone and detection zone in the flexible dish lateral wall outer fringe, the equipartition has a plurality of recesses in the detection zone, be equipped with the clearance between the recess, be equipped with bent axle position sensor on the engine housing, bent axle position sensor is corresponding with flexible dish lateral wall outer fringe. The utility model discloses simple structure, convenient operation can realize that crankshaft sensor signal acquisition, starter drive the bent axle rotatory, can realize again that bent axle output is to automatic gearbox's power take off, and can accurately judge the bent axle position, and the oil consumption is low.

Description

Gasoline engine for small displacement vehicle carrying automatic transmission

Technical Field

The utility model belongs to the technical field of the engine, especially, carry on automatic transmission's gasoline engine for small discharge capacity vehicle.

Background

Most engines with the displacement of less than 1.0L in the market at present adopt manual gearboxes, the engines matched with automatic gearboxes are engines with large displacement, and manual variable-speed automobiles need frequent gear shifting when climbing slopes and walking in busy urban areas, so that the driving is inconvenient. And the power output end of the engine adopts a flywheel, so that the mass is large, the energy consumption during operation is excessive, and the oil consumption is large. An engine crankshaft position sensor of an automatic gear is one of the most important sensors in an automobile control system. It has the following functions: detecting engine speed, and is therefore also known as a speed sensor; detecting piston top dead center position, also referred to as a top dead center sensor, includes detecting cylinder top dead center signals for controlling ignition, the first cylinder top dead center signal for controlling sequential injection. The existing crankshaft position sensor is generally arranged at a transmission, a signal wheel is generally a driving plate, the rotating speed of an engine and the position information of a crankshaft are acquired by acquiring the tooth missing information on the driving plate, but the signal wheel has large mass and consumes more energy when running, and the oil consumption is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a carry on automatic gearbox's gasoline engine for small discharge capacity vehicle, simple structure, convenient operation can realize that crank sensor signal acquisition, starter drive the bent axle rotatory, can realize again that bent axle output to automatic gearbox's power take off, and can accurately judge the bent axle position, the oil consumption is low.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a gasoline engine for a small displacement vehicle carrying an automatic transmission comprises an engine body, wherein the engine body comprises an air inlet manifold, a crankshaft and an engine ECU, an engine shell is arranged outside the engine body, an electronic throttle body is arranged at an air inlet of the air inlet manifold, a control unit of the electronic throttle body is electrically connected with the engine ECU, a starting disc is arranged at the output end of the crankshaft, a plurality of teeth are arranged on the circumference of the starting disc, a flexible disc is arranged on the side, away from the engine body, of the starting disc, the flexible disc is a thin steel disc, a plurality of lightening holes are formed in the upper end of the flexible disc, an induction area and a detection area are arranged on the outer edge of the side wall of the flexible disc, a plurality of grooves are uniformly distributed in the detection area, gaps are formed among the grooves, a crankshaft position sensor is arranged on the engine shell and corresponds to the outer edge of the side wall of the flexible disc, and the crank position sensor is electrically connected to the engine ECU.

Preferably, the flexible disk is connected with the starting disk through a bolt, so that the flexible disk and the starting disk are convenient to disassemble and assemble.

Preferably, the crankshaft position sensor is a magnetoelectric induction type crankshaft position sensor, when the crankshaft position sensor is opposite to the groove, an air gap between the flexible disk and the crankshaft position sensor is large, the magnetic field is weak, when the crankshaft position sensor is opposite to the gap, the air gap between the flexible disk and the crankshaft position sensor is small, the magnetic field is strong, when the crankshaft position sensor is opposite to the induction area, the magnetic field intensity is different from the former two kinds of magnetic fields, and the position of the crankshaft and the top dead center of the oil cylinder are determined according to the intensity of the magnetic field.

The utility model discloses still including making this other subassemblies of the automobile-used gasoline engine normal use of small discharge capacity that carry on automatic gearbox, be the conventional technical means in this field. In addition, the device or the component which is not limited in the utility model adopts the conventional technical means in the field.

The utility model discloses during the use, the starter makes the bent axle rotatory through starting the dish, when bent axle position sensor is relative with the recess, air gap between flexible dish and bent axle position sensor is big, magnetic field is weak, bent axle position sensor is relative to the clearance, flexible dish is little with bent axle position sensor's air gap, magnetic field strength, bent axle position sensor is relative to the induction zone, magnetic field strength is different with two kinds of preceding, the position of bent axle and the top dead center of hydro-cylinder are confirmed to the power degree through magnetic field, the electronic throttle body is according to the signal of accelerator pedal sensor transmission, the aperture of adjustment air throttle, transfer the aperture of air throttle to optimum, the stable performance and the lower oil consumption of engine have been guaranteed.

The beneficial effects of the utility model are that, simple structure, convenient operation can realize that crankshaft sensor signal acquisition, starter drive the bent axle rotatory, can realize the power take off of bent axle output to automatic gearbox again, and can accurately judge the bent axle position, and the oil consumption is low.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the flexible disk of FIG. 1.

Detailed Description

The present invention will be described more clearly with reference to the accompanying drawings and specific embodiments in the embodiments of the present invention, and the description herein is only for explaining the present invention, but not for limiting the present invention. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by those skilled in the art without creative efforts should be included in the protection scope of the present invention.

Examples

As shown in fig. 1-2, a gasoline engine for a small displacement vehicle carrying an automatic transmission comprises an engine body, the engine body comprises an intake manifold 1, a crankshaft and an engine ECU (not shown), an engine casing (not shown) is arranged outside the engine body, an electronic throttle body 2 is arranged at an intake port of the intake manifold 1, a control unit of the electronic throttle body is electrically connected with the engine ECU, a starting disc 3 is arranged at an output end of the crankshaft, a plurality of teeth are arranged on the circumference of the starting disc 3, a flexible disc 7 is arranged at a side of the starting disc 3 away from the engine body, the flexible disc 7 is a thin steel disc, a plurality of lightening holes 6 are arranged at an upper end of the flexible disc 7, a sensing area 8 and a detection area are arranged on the outer edge of the side wall of the flexible disc 7, a plurality of grooves 4 are uniformly distributed in the detection area, gaps are arranged among the grooves 4, and a crankshaft position sensor 5 is arranged on the engine casing, the crank position sensor 5 corresponds to the outer edge of the side wall of the flexible disk 7, and the crank position sensor 5 is electrically connected to the engine ECU.

The flexible disk 7 is connected with the starting disk 3 through bolts, so that the flexible disk and the starting disk are convenient to disassemble and assemble.

The crankshaft position sensor 5 is a magnetoelectric induction type crankshaft position sensor, when the crankshaft position sensor 5 is opposite to the groove 4, an air gap between the flexible disk 7 and the crankshaft position sensor 5 is large, a magnetic field is weak, when the crankshaft position sensor 5 is opposite to the gap, the air gap between the flexible disk 7 and the crankshaft position sensor 5 is small, the magnetic field is strong, when the crankshaft position sensor 5 is opposite to the induction area 8, the magnetic field intensity is different from the former two kinds of magnetic fields, and the position of the crankshaft and the top dead center of the oil cylinder are determined according to the intensity of the magnetic field.

The utility model discloses during the use, the starter makes the bent axle rotatory through start-up dish 3, bent axle position sensor 5 is to the time with recess 4, air gap between flexible dish 7 and bent axle position sensor 5 is big, magnetic field is weak, bent axle position sensor 5 is to the time with the clearance, flexible dish 7 is little with bent axle position sensor 5's air gap, magnetic field intensity, bent axle position sensor 5 is to the time with induction zone 8, magnetic field intensity is different with two kinds of preceding, confirm the position of bent axle and the top dead center of hydro-cylinder through the power degree in magnetic field, the signal of electron throttle body 2 according to accelerator pedal sensor transmission, the aperture of adjustment throttle valve, transfer the aperture of throttle valve to optimum, the stable performance and the lower oil consumption of engine have been guaranteed.

The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.

Claims

1. The utility model provides a carry on automatic transmission's gasoline engine for small discharge capacity vehicle, includes engine body, its characterized in that: the engine body comprises an air inlet manifold (1), a crankshaft and an engine ECU, an engine shell is arranged outside the engine body, an electronic throttle body (2) is arranged at an air inlet of the air inlet manifold (1), a control unit of the electronic throttle body is electrically connected with the engine ECU, a starting disc (3) is arranged at the output end of the crankshaft, a plurality of teeth are arranged on the circumference of the starting disc (3), a flexible disc (7) is arranged on the side, away from the engine body, of the starting disc (3), the flexible disc (7) is a thin steel disc, a plurality of lightening holes (6) are formed in the upper end of the flexible disc (7), a sensing area (8) and a sensing area are arranged on the outer edge of the side wall of the flexible disc (7), a plurality of grooves (4) are uniformly distributed in the sensing area, gaps are formed among the grooves (4), a crankshaft position sensor (5) is arranged on the engine shell, and the crankshaft position sensor (5) corresponds to the outer edge of the side wall of the flexible disc (7), and the crank position sensor (5) is electrically connected to the engine ECU.

2. The gasoline engine for a small displacement vehicle equipped with an automatic transmission according to claim 1, wherein: the flexible disk (7) is connected with the starting disk (3) through bolts.

3. The gasoline engine for a small displacement vehicle equipped with an automatic transmission according to claim 1, wherein: the crankshaft position sensor (5) is a magnetoelectric induction type crankshaft position sensor.