CN102795110A - Cruise control system of automobile - Google Patents

Abstract

The present invention relates to the field of automobiles, in particular to an automobile cruise control system, including a signal acquisition module, a control module, and an output execution module; the signal acquisition module is connected to the control module, and the control module is connected to the output execution module; the described The control module includes a SMD MEGA8L microcontroller, and the signal acquisition module includes a vehicle speed sensor. After adopting the above scheme, you only need to turn on the cruise control switch at the beginning, stabilize the speed of the vehicle for 2 seconds, and the speed control system can automatically fix the speed.

Description

A car cruise control system

the

technical field

The present invention relates to the field of automobiles, in particular to a cruise control system for automobiles.

the

Background technique

Car is a very important means of transportation in people's daily life. During a long journey, in order to maintain a certain speed, the driver needs to step on the accelerator for a long time to maintain the same posture, which is easy to cause fatigue.

Therefore, the inventor made further research on this and developed a cruise control system for automobiles, from which this case arose.

the

Contents of the invention

    The object of the present invention is to provide a cruise control system for automobiles. It only needs to turn on the cruise control switch at the beginning and stabilize the vehicle speed for 2 seconds, and then the speed control system can automatically fix the speed.

In order to achieve the above object, the technical scheme of the present invention is as follows:

A kind of automobile constant speed cruising system, comprises signal acquisition module, control module, output execution module; Described signal acquisition module is connected with control module, and control module is connected with output execution module; Described control module comprises patch type MEGA8L single-chip microcomputer , the signal acquisition module includes a vehicle speed sensor.

After adopting the above scheme, the present invention has the following advantages compared with the prior art:

1. Keep the driving speed of the car stable. No matter whether the car is driving on a flat road or uphill or downhill, whether it is sunny or stormy, as long as the engine power is within the range allowed, the speed of the car can remain constant.

2. Improve the driving comfort of the car. Because of its stable speed, there is no sense of fast or slow, especially when driving in the suburbs or on the expressway, the comfort of the occupants is more obvious. In addition, since the driver does not have to step on the accelerator pedal as often, fatigue levels are greatly reduced.

3. It can improve fuel economy and environmental protection. After the cruise control system is adopted, the fuel supply and power of the engine can be coordinated in the best state. Under the same driving conditions, for experienced drivers, it can save fuel by 15%, and reduce the poisonous exhaust gas. content of ingredients.

the

Description of drawings

Fig. 1 is a schematic diagram of the present invention;

Label description

Signal acquisition module 1, control module 2, output execution module 3, vehicle throttle 4.

the

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in the figure, a vehicle cruise control system disclosed by the present invention includes a signal acquisition module 1, a control module 2, and an output execution module 3; the signal acquisition module 1 is connected to the control module 2, and the control module 2 is connected to the output execution module 3 Connection; the control module 2 includes a SMD MEGA8L microcontroller, and the signal acquisition module 1 includes a vehicle speed sensor.

First, the pulse signal of the vehicle speed sensor is collected through the signal acquisition module 1. When the signal is transmitted to the control module 2, the collected vehicle speed signal is compared with the current fixed speed signal, and the feedback control calculation is performed through the PID algorithm, and the obtained Out of the current control amount.

Then, the calculated current control quantity is converted into PWM pulse output through the output execution module 3, so as to control the opening and closing of the throttle valve 4 of the vehicle, and finally determine the speed of the vehicle.

The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, any non-substantial changes to the present invention by using this concept should be an act of violating the protection scope of the present invention. the

Claims (1)

1. A cruise control system for automobiles, characterized in that: comprise a signal acquisition module, a control module, an output execution module; the signal acquisition module is connected with the control module, and the control module is connected with the output execution module; the control module Including SMD MEGA8L single chip microcomputer, signal acquisition module includes vehicle speed sensor.