CN213867992U

CN213867992U - Engine power mode automatic change control device

Info

Publication number: CN213867992U
Application number: CN202022169016.9U
Authority: CN
Inventors: 卢绪兵; 张建; 薛伟; 齐加萍; 王良兵
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-08-03
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses an automatic controlling means that commutates of engine power mode, it belongs to engine control system field, and it has been solved and has lacked a user among the prior art after selecting automatic mode, and engine power mode is along with the change automatic switching of gear, greatly reduces operator's intensity of labour, and when the relay etc. breaks down, can select the automatic controlling means's that commutates of engine power mode problem through manual mode. The automatic transmission mainly comprises a gear selector and a speed change valve, wherein the gear selector is connected with the speed change valve, and a relay I and a relay II are connected between the gear selector and the speed change valve; the relay I and the relay II are respectively connected with a power supply; the relay I and the relay II are respectively connected with an instrument; the meter is connected with an engine ECU. The utility model discloses mainly used engine power switches.

Description

Engine power mode automatic change control device

Technical Field

The utility model relates to an engine control system, specifically speaking especially relates to an automatic conversion control device of engine power mode.

Background

In the process of construction operation of the land leveler, the working device and the accessories need to be lifted, lowered, rotated and the like to adjust the positions, so that soil cutting, scraping and leveling operations are completed.

At present, a multi-state switch is generally required to be operated to adjust different resistance values input to an engine, an engine ECU (electronic control unit) converts different power modes after judging the resistance values, for example, CN107882090A selects different power modes by using a controller, but the structure is complex, the cost is high, for example, CN109404143A adopts a method of realizing a double-power curve by using a switch and a relay, but the system integration level is not high, when a switch or a logic controlled device has a fault, the power modes cannot be switched, and when a diode of an isolating device breaks down, the normal gear shifting function is influenced.

At present, an automatic engine power mode switching control device which can automatically switch the engine power mode along with the change of the gear after a user selects the automatic mode, greatly reduce the labor intensity of an operator and select the engine mode through a manual mode when a relay or the like breaks down is lacked.

Disclosure of Invention

The utility model aims at providing an automatic controlling means that commutates of engine power mode to solve lack a user among the prior art after selecting automatic mode, engine power mode is along with the change automatic alternation of gear, greatly reduces operator's intensity of labour, and when the relay etc. breaks down, can select the automatic controlling means's that commutates of engine power mode problem through manual mode.

The utility model discloses a realize through following technical scheme:

an engine power mode automatic conversion control device comprises a gear selector and a speed change valve, wherein the gear selector is connected with the speed change valve, and a relay I and a relay II are connected between the gear selector and the speed change valve; the relay I and the relay II are respectively connected with a power supply; the relay I and the relay II are respectively connected with an instrument; the meter is connected with an engine ECU.

Compared with the prior art, the beneficial effects of the utility model are that:

1. after the user selects the automatic mode, the power mode of the engine is automatically changed along with the change of the gear, and the labor intensity of an operator is greatly reduced. And when a relay or the like fails, the engine mode can be selected by the manual mode.

2. And an additional controller is not required, so that the cost is reduced.

3. The engine has 3 power modes capable of being changed automatically with the gear.

4. When the relay and the like have faults, the manual power mode switching is not influenced.

Drawings

Fig. 1 is an electrical schematic of the present invention;

FIG. 2 is an instrument operating interface of the present invention;

FIG. 3 is a diagram I showing the logical relationship between the on-off state and the shift position of the solenoid valve of the transmission valve of the present invention;

fig. 4 is a logic relationship diagram ii of the on-off and gear positions of the electromagnetic valve of the speed change valve of the present invention.

In the figure: 1. an engine ECU; 2. a meter; 3. a relay I; 4. a relay II; 5. a gear selector; 6. a speed change valve; 7. a power source.

Detailed Description

The invention will be further described and illustrated with reference to the accompanying drawings.

Embodiment 1, a power mode automatic shift control device, including gear selector 5 and speed change valve 6, the gear selector 5 is connected with speed change valve 6, connect with relay I3 and relay II 4 between gear selector 5 and speed change valve 6; the 38 end of the relay I3 and the 38 end of the relay II 4 are respectively connected with the power supply 7; the relay I3 is connected with the instrument 2 through an Ec line, and the relay II 4 is connected with the instrument 2 through a Po line; the meter 2 is connected to an engine ECU 1.

In the meter operation interface, a heavy load mode, a standard mode, a light load mode or an automatic mode in a manual mode can be selected.

The engine power mode is automatically changed along with the gear, and the following changing principles are adopted:

f1, F2 and R1 gears, a heavy load mode;

f3, F4 and R2 gears, standard mode;

f5, F6 and R3 gears, light load mode.

The gear selector 5 controls the on-off of different electromagnetic valves in the speed change valve 6 to complete the switching of different gears, the relay II 4 takes signals of an M2 electromagnetic valve, the relay I3 takes signals of an M4 electromagnetic valve, when the gears are located at F1, F2 and R1, the M2 electromagnetic valve is electrified, a port 86 of the relay II 4 is electrified, the relay II 4 is attracted, a normally open port 87 and a port 30 of the relay II 4 are connected, a Po line is connected with a power supply 7, Po is electrified, when other gears are arranged, the M2 electromagnetic valve is not electrified, the relay II 4 is not attracted, the normally open port 87 and the port 30 of the relay II 4 are disconnected, and the Po line is not electrified. When the gear is at F5, F6 and R3, the electromagnetic valve M4 is not electrified, the port 86 of the relay I3 is not electrified, the normally closed port 87a of the relay I3 is communicated with the port 30, the Ec line is communicated with the power supply 7, and the Ec line is electrified, when the gear is at other gears, the electromagnetic valve M4 is electrified, the port 86 of the relay I3 is electrified, the relay I3 is attracted, the normally closed port 87a of the relay I3 is disconnected with the port 30, the Ec line is not communicated with the power supply 7, and the Ec line is not electrified.

When the operator selects the automatic mode, the instrument 2 judges the received Ec and Po line signals, and when the Ec is electrified, a light-load mode is sent to the engine ECU1, so that the light-load mode is switched; when Po is electrified, sending a heavy-load mode to the engine ECU1 to complete the switching of the heavy-load mode; when both Ec and Po are dead, the standard mode is sent to the engine ECU1, and the switching of the standard mode is completed.

When the manual mode is selected by the operator, one of the three modes selected by the operator is sent to the engine ECU1, and switching of the selected engine power mode is completed.

Claims

1. An engine power mode automatic switching control device characterized in that: the automatic transmission comprises a gear selector (5) and a speed change valve (6), wherein the gear selector (5) is connected with the speed change valve (6), and a relay I (3) and a relay II (4) are connected between the gear selector (5) and the speed change valve (6); the relay I (3) and the relay II (4) are respectively connected with a power supply (7); the relay I (3) and the relay II (4) are respectively connected with the instrument (2); the meter (2) is connected with an engine ECU (1).