阅读说明：本技术 一种起动机、车辆及发动机启动控制方法 (Starter, vehicle and engine starting control method ) 是由 尹承军 张文 杨敬恩 范强 赖运智 徐龙 陈泽 于 2021-09-09 设计创作，主要内容包括：本发明涉及交通工具技术领域,公开一种起动机、车辆及发动机启动控制方法。上述起动机包括：电动机、主动轮、从动轮和离合器；电动机的输出轴与离合器传动连接,离合器与主动轮传动连接；主动轮与从动轮传动连接。在该起动机中,取消了拔叉,主动轮一直处于伸出状态,且与从动轮一直都处于传动连接状态,两者之间不存在动态配合的过程,只需要控制离合器啮合即可实现电动机驱动主动轮转动,从而,使从动轮带动发动机的飞轮转动,以使发动机起动,可避免因动态配合带来的物理损坏问题,控制离合器脱离,即可停止电动机对主动轮的驱动,也可以防止发动机在起动后反过来带动电动机转动。(The invention relates to the technical field of vehicles and discloses a starter, a vehicle and an engine starting control method. The starter described above includes: the motor, the driving wheel, the driven wheel and the clutch; the output shaft of the motor is in transmission connection with a clutch, and the clutch is in transmission connection with the driving wheel; the driving wheel is in transmission connection with the driven wheel. In the starter, a shifting fork is cancelled, the driving wheel is always in an extending state and is always in a transmission connection state with the driven wheel, a dynamic matching process does not exist between the driving wheel and the driven wheel, the motor can be driven to rotate only by controlling the meshing of the clutch, and therefore the driven wheel drives the flywheel of the engine to rotate, the engine is started, the problem of physical damage caused by dynamic matching can be avoided, the clutch is controlled to be disengaged, the driving of the driving wheel by the motor can be stopped, and the motor can be prevented from being driven to rotate in reverse after the engine is started.)

1. A starter, comprising: the motor, the driving wheel, the driven wheel and the clutch; an output shaft of the motor is in transmission connection with the clutch, and the clutch is in transmission connection with the driving wheel;

the driving wheel is in transmission connection with the driven wheel.

2. The starter as claimed in claim 1, wherein the driving wheel is a driving gear, and the driven wheel is a flywheel ring gear, and the driving gear is meshed with the flywheel ring gear.

3. The starter according to claim 1, further comprising a temperature sensor for measuring a temperature of the motor.

4. The starter motor according to claim 3, wherein the electric motor includes a housing, and the temperature sensor is located in a space surrounded by the housing.

5. A vehicle comprising an engine and a starter as claimed in any one of claims 1 to 4, wherein the driven wheel is drivingly connected to a flywheel of the engine.

6. The vehicle of claim 5, further comprising a control module in signal communication with the temperature sensor and configured to determine whether to start the motor based on whether the temperature of the temperature sensor is less than a set temperature when the starter includes the temperature sensor.

7. The vehicle of claim 6, further comprising a cab, wherein a temperature display module is disposed in the cab, and the control module is configured to send the temperature signal collected by the temperature sensor to the temperature display module to display the temperature.

8. The vehicle of claim 6, further comprising an alarm, wherein the control module is configured to control the alarm to alarm when the temperature of the temperature sensor exceeds the set temperature.

9. An engine start control method in a vehicle according to any one of claims 6 to 8, characterized by comprising:

after the whole vehicle is powered on, judging whether the temperature of the temperature sensor is lower than a set temperature or not, if so, controlling the motor to start and controlling the clutch to be engaged so as to drive the engine to work;

and when the rotating speed of the engine exceeds a set speed, controlling the clutch to be disengaged and controlling the motor to stop working.

10. The method of claim 9, wherein when the vehicle includes an alarm, the method further comprises:

and after the whole vehicle is powered on, if the temperature of the temperature sensor exceeds the set temperature, the alarm is controlled to give an alarm.

Technical Field

The invention relates to the technical field of vehicles, in particular to a starter, a vehicle and an engine starting control method.

Background

The starter converts the electric energy of the storage battery into mechanical energy to drive the flywheel of the engine to rotate so as to start the engine. Referring specifically to fig. 1, when the ignition switch 15 is turned on, the electromagnetic switch 16 is closed, and the shift fork 17 is pushed to move the driving gear 12 along the axial direction of the motor 13 to engage with the flywheel ring gear 11; the motor 13 starts to work, converts the electric energy provided by the storage battery 14 into mechanical energy, drives the driving gear 12 to rotate, and drives the flywheel gear ring 11, so that the engine is started. After the engine is started successfully, the power supply is cut off, the driving gear 12 is separated from the flywheel gear ring 11 under the driving of the shifting fork 17, the motor 13 stops working, and the starter stops working. On one hand, the driving gear 12 as a driving wheel and the flywheel gear ring 11 as a driven wheel are dynamically meshed or separated in the starting process, and in the meshing process, the driving gear 12 and the flywheel gear ring 11 move relatively, so that the problems of physical damage such as gear beating and the like are easily caused. On the other hand, the starter converts electric energy into mechanical energy, when the starter works, a rotor in the motor runs at a high speed, when the starting resistance moment is larger, the rotating speed is smaller, the main circuit current of the motor is larger, the heating value in unit time is larger, the motor is frequently dragged, the heat generated in the starter in the previous time cannot be sufficiently radiated, the temperature of the rotor is overhigh, and finally the starter is burnt and damaged due to overheating.

Disclosure of Invention

The invention discloses a starter, a vehicle and an engine starting control method, which are used for solving the problems of physical damage of a driven wheel caused by dynamic meshing of a driving wheel and the driven wheel and the problem of burning loss of the starter caused by forced starting of a motor at high temperature.

In order to achieve the purpose, the invention provides the following technical scheme:

in a first aspect, there is provided a starter including: the motor, the driving wheel, the driven wheel and the clutch; an output shaft of the motor is in transmission connection with the clutch, and the clutch is in transmission connection with the driving wheel; the driving wheel is in transmission connection with the driven wheel. In the starter, a shifting fork is cancelled, the driving wheel is always in an extending state and is always in a transmission connection state with the driven wheel, a dynamic matching process does not exist between the driving wheel and the driven wheel, the motor can be driven to rotate only by controlling the meshing of the clutch, and therefore the driven wheel drives the flywheel of the engine to rotate, the engine is started, the problem of physical damage caused by dynamic matching can be avoided, the clutch is controlled to be disengaged, the driving of the driving wheel by the motor can be stopped, and the motor can be prevented from being driven to rotate in reverse after the engine is started.

Optionally, the driving wheel is a driving gear, the driven wheel is a flywheel gear ring, and the driving gear is meshed with the flywheel gear ring.

Optionally, the starter further comprises a temperature sensor for measuring a temperature of the motor.

Optionally, the motor comprises a housing, and the temperature sensor is located in a space enclosed by the housing.

In a second aspect, a vehicle is provided, which includes an engine and the starter provided in any of the above technical solutions, and the driven wheel is in transmission connection with a flywheel of the engine.

The vehicle and the starter have the same advantages compared with the prior art, and the description is omitted.

Optionally, when the starter includes a temperature sensor, the vehicle further includes a control module, which is in signal connection with the temperature sensor and is configured to determine whether to start the motor according to whether the temperature of the temperature sensor is lower than a set temperature.

Optionally, the vehicle further comprises a cab, a temperature display module is arranged in the cab, and the control module is used for sending the temperature signal acquired by the temperature sensor to the temperature display module to display the temperature.

Optionally, the vehicle further comprises an alarm, and when the temperature of the temperature sensor exceeds the set temperature, the control module is used for controlling the alarm to give an alarm.

In a third aspect, there is provided an engine start control method in a vehicle provided in any one of the last three aspects, the method including: after the whole vehicle is powered on, judging whether the temperature of the temperature sensor is lower than a set temperature or not, if so, controlling the motor to start and controlling the clutch to be engaged so as to drive the engine to work; and when the rotating speed of the engine exceeds a set speed, controlling the clutch to be separated and controlling the motor to stop working.

In the engine starting control method, the motor is started only when the temperature of the motor is lower than the set temperature, so that the problem of starter burnout caused by forcibly starting the motor at high temperature is avoided.

Optionally, when the vehicle includes an alarm, the method further comprises: and after the whole vehicle is powered on, if the temperature of the temperature sensor exceeds the set temperature, the alarm is controlled to give an alarm.

Drawings

FIG. 1 is a schematic illustration of a prior art starter;

fig. 2 is a schematic diagram of a starter provided in an embodiment of the present application;

FIG. 3 is a control logic diagram of an engine start control method according to an embodiment of the present application.

Icon: 11-flywheel gear ring; 12-a drive gear; 13-an electric motor; 14-a storage battery; 15-an ignition switch; 16-an electromagnetic switch; 17-shifting fork; 21-a driven wheel; 22-a clutch; 23-an electric motor; 24-a storage battery; 25-an ignition switch; 26-an electromagnetic switch; 27-temperature sensor circuit; 28-driving wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 2, a starter provided in an embodiment of the present application includes: a motor 23, a driving pulley 28, a driven pulley 21, and a clutch 22; an output shaft of the motor 23 is in transmission connection with the clutch 22, and the clutch 22 is in transmission connection with the driving wheel 28; the driving wheel 28 is in transmission connection with the driven wheel 21. In the starter, a shifting fork is cancelled, the driving wheel 28 is always in an extending state and is always in transmission connection with the driven wheel 21, a dynamic matching process does not exist between the driving wheel and the driven wheel, the driving wheel 28 is driven to rotate by the motor 23 only by controlling the meshing of the clutch 22, and therefore the driven wheel 21 drives the flywheel of the engine to rotate, so that the engine is started, the problem of physical damage of the driven wheel 21 caused by dynamic matching can be solved, the clutch 22 is controlled to be disengaged, the driving of the driving wheel 28 by the motor 23 can be stopped, and the motor 23 can be prevented from being driven to rotate by the engine in a reverse mode after the engine is started.

When the ignition switch 25 is closed, the electromagnetic switch 26 is closed, and the clutch 22 is engaged; and the motor 23 starts to work, converting the electric energy provided by the accumulator 24 into mechanical energy, driving the driving wheel 22 to rotate and driving the driven wheel 21 to rotate.

Specifically, the driving pulley 28 and the driven pulley 21 may be wheel-shaped structures, and may be belt pulleys, so long as the two are connected by a belt when the starter is assembled.

Or, the driving wheel 28 may also be a driving gear, and the driven wheel 21 may also be a flywheel ring gear, the driving gear and the flywheel ring gear are particularly easy to be toothed in the dynamic meshing process, and the driving gear and the flywheel ring gear are directly meshed during assembly, and physical damage caused by the toothed gear can be effectively avoided by controlling the meshing or the disengagement of the clutch 22 in the later stage.

In fig. 2 in particular, the starter further comprises a temperature sensor line 27, the temperature sensor line 27 comprising a temperature sensor for measuring the temperature of the electric motor 23. On one hand, the temperature of the motor 23 is convenient to detect so as to judge whether the motor 23 is suitable for starting, and the problem of starter burning caused by forcibly starting the motor 23 at high temperature is avoided; on the other hand, the electronic control system of the engine takes the temperature value as a monitoring variable, so that the temperature value can be used as a basis for checking the reason that the starter does not work.

In one particular embodiment, the motor 23 includes a housing, and the temperature sensor may be located within a space enclosed by the housing to more accurately reflect the actual operating temperature of the components within the housing of the motor 23.

Based on the same inventive concept, the embodiment of the present application further provides a vehicle, the vehicle may include an engine and the starter provided in the foregoing embodiment, and the driven wheel 21 is in transmission connection with a flywheel of the engine. The beneficial effects of the starter can be referred to the description of the starter.

In a specific embodiment, when the starter includes a temperature sensor, the vehicle further includes a control module in signal connection with the temperature sensor and configured to determine whether to start the motor 23 according to whether the temperature of the temperature sensor is lower than a set temperature, and start the motor 23 only when the temperature is lower than the set temperature, thereby avoiding a burning problem caused by forced starting of the motor 23 at a high temperature.

In a specific embodiment, the vehicle further includes a cab, a temperature display module is disposed in the cab, the temperature display module may be an instrument panel of a driving position, and the control module is configured to send a temperature signal acquired by the temperature sensor to the temperature display module to display the temperature, so that a driver can obtain a working temperature of the motor 23 at any time to determine whether starting operation is possible.

In a specific embodiment, the vehicle further comprises an alarm, and when the temperature of the temperature sensor exceeds (can be understood as being greater than or equal to) the set temperature, the control module is used for controlling the alarm to give an alarm to remind a driver to avoid forced starting at high temperature.

Referring to fig. 3, based on the same inventive concept, an embodiment of the present application further provides an engine start control method, including: when the vehicle T15 is powered on, whether the temperature of the temperature sensor is lower than a set temperature (T1 value) or not is judged, if yes, the ignition switch 25 (also called T50) is closed, the electromagnetic switch 26 is closed to control the whole starter to work, namely the motor 23 is started, and the clutch 22 is controlled to be engaged to drive the engine to work; when the rotational speed of the engine exceeds the set speed (starter exit rotational speed value), the clutch 22 is controlled to be disengaged, and the electromagnetic switch 26 is turned off to control the electric motor 23 to stop operating. In the engine start control method, the motor 23 is started only when the temperature of the motor 23 is lower than the set temperature, so that the problem of starter burnout caused by forcibly starting the motor 23 at a high temperature is avoided.

In a particular embodiment, when the vehicle includes an alarm, the method further comprises: when the T15 of the whole vehicle is electrified, if the temperature of the temperature sensor exceeds the set temperature (T1 value), the alarm is controlled to give an alarm, namely, the fault alarm of the ultrahigh temperature in the starter is given.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.