Analysis of common intelligent driving systems and test points

An intelligent driving system is a vehicle control system that can autonomously perceive, make decisions, and execute driving tasks. Common intelligent driving systems include:

Automatic parking system: can automatically control the vehicle to complete the parking process, including finding a parking space, steering, accelerating, braking and other operations.

Adaptive cruise control system: can adaptively adjust the vehicle speed according to factors such as vehicle speed, vehicle distance and traffic conditions, and automatically maintain a safe distance between the vehicle and the vehicle in front.

Lane Keeping Assist System: can automatically identify lane lines and control the vehicle to stay within the lane to avoid lane deviation or collision.

Emergency Brake Assist System: can automatically sense obstacles ahead and take emergency braking measures to prevent collisions.

Blind spot monitoring system: can monitor the blind spots around the vehicle and send out warning signals to avoid traffic accidents in the blind spots.

Autonomous driving system: capable of sensing, making decisions and executing driving tasks completely autonomously without the need for human intervention.

These intelligent driving systems have different functions and performances, but they are all designed to improve vehicle safety, comfort and efficiency, and provide drivers with a better driving experience.

At present, many car brands around the world have begun to use autonomous driving systems. The following are some of the more well-known brands:

Tesla: Tesla is the first automaker to commercially launch an autonomous driving system, and its Autopilot system can achieve autonomous driving on highways.

Mercedes-Benz: Mercedes-Benz's Drive Pilot system can realize functions such as adaptive cruise control, lane keeping and automatic parking.

BMW: BMW's Active Cruise Control and Traffic Jam Assistant systems can help drivers drive autonomously in congested traffic.

Audi: Audi's Traffic Jam Pilot system can achieve autonomous driving in congested traffic, but it is still in the testing stage in terms of full-speed autonomous driving.

General Motors: GM's Super Cruise system can drive itself on highways and has eye-tracking technology.

Toyota: Toyota's Lexus brand LS can realize functions such as automatic parking and adaptive cruise control.

Honda: Honda's Acura brand's RLX can implement features such as adaptive cruise control and lane keeping.

It should be noted that although these car brands have begun using autonomous driving systems, these systems are still in the stage of continuous development and improvement, and drivers still need to remain vigilant and be ready to take over control of the vehicle at any time.

There are many autopilot system technology providers in China. Here are some of the more well-known companies:

Baidu Apollo: Baidu Apollo is Baidu's open autonomous driving platform, providing a full set of autonomous driving solutions, including sensors, computing platforms, software systems, etc., and has currently cooperated with many automobile manufacturers.

CHJ Automotive: CHJ Automotive is a technology company focusing on the field of automotive intelligence. Its autonomous driving system includes modules such as perception, decision-making, and control. It has currently achieved autonomous driving on many models.

Qiantu Motors: Qiantu Motors is a new energy vehicle manufacturer. Its autonomous driving system includes multiple sensors such as lidar, cameras, millimeter-wave radar, etc., and uses artificial intelligence technology to achieve high-precision map and lane recognition and automatic changes.

So how do we test the intelligent driving system? Let me explain in detail:

Driver assistance system testing

The testing of the vehicle assisted driving system should include the following steps:

Confirm the test site: The test site should be a flat, spacious road without obstacles, preferably a closed test site without other vehicles and pedestrians.

Check the vehicle: Check whether the vehicle's assisted driving system is working properly, including radar, cameras, sensors and other equipment.

Determine test items: Determine test items based on the different functions of the assisted driving system, such as automatic parking, automatic following, automatic lane changing, etc.

Conduct tests: Perform tests according to the requirements of the test items, record test results, and analyze and resolve problems that arise during the testing process.

Statistical analysis data: Perform data analysis based on test results to evaluate the performance and reliability of the assisted driving system and determine whether adjustments and improvements are needed.

Repeat testing: Retest the adjusted and improved assisted driving system to ensure the stability and reliability of the system.

In short, the testing of automobile assisted driving systems needs to be carried out strictly in accordance with regulations to ensure the safety and effectiveness of the testing.

Vehicle automatic obstacle avoidance system test

The testing of the vehicle automatic obstacle avoidance system requires the following steps:

Determine the test site: The test site should be an open and flat place without obstacles and other vehicles to ensure the safety and accuracy of the test.

Set up a test route: The test route should include different scenarios such as straight-line driving, curve driving, obstacle avoidance, and emergency braking to test the performance of the automatic obstacle avoidance system in different situations.

Install test equipment: Test equipment such as sensors and cameras need to be installed to monitor and record the status of the vehicle.

Conducting tests: During the testing process, the vehicle needs to be tested repeatedly to ensure the accuracy and reliability of the test data. During the test, the vehicle's speed, acceleration, steering angle and other data need to be recorded for analysis and evaluation.

Analyze test results: Based on the test data, evaluate and analyze the performance of the vehicle automatic obstacle avoidance system to determine its safety and reliability. If the test results are not ideal, the system needs to be optimized and improved until the expected performance level is achieved.

Parking assistance system test

The test in this part mainly includes the following aspects:

Testing sensors: The sensors of the parking assist system are mainly used to detect obstacles around the vehicle, so the sensitivity and accuracy of the sensors need to be tested. During the test, obstacles of different sizes and shapes can be placed around the vehicle to observe whether the sensors can correctly identify and prompt.

Test camera: The camera of the parking assist system is mainly used to provide real-time images of the vehicle's surroundings, so the camera's clarity and image stability need to be tested. During the test, obstacles of different light and angles can be placed around the vehicle to observe whether the camera can clearly display the obstacles and the surrounding environment.

Test prompt tone: The prompt tone of the parking assist system is mainly used to remind the driver of obstacles around the vehicle, so it is necessary to test the volume and accuracy of the prompt tone. During the test, obstacles of different distances and sizes can be placed around the vehicle to observe whether the prompt tone can prompt in a timely and accurate manner.

Test the overall performance of the system: The overall performance of the parking assistance system includes the ability of the sensors, cameras and prompts to work together. During the test, the vehicle can be parked at different positions and angles to observe whether the parking assistance system can accurately and timely identify obstacles and issue prompts.

It should be noted that when testing the parking assist system, it is necessary to ensure the safety of the test environment to avoid collisions and other unexpected situations. At the same time, it is also necessary to pay attention to the safety of the vehicle and test equipment during the test.

Adaptive Cruise Control (ACC) System Test

This part of the test can be tested through the following steps:

Static test: In the parking state, check whether the various functions of the ACC system are normal, including checking whether the sensors, cameras, radars, etc. are working properly, and whether the system can correctly identify road signs and lane lines.

Dynamic test: During driving, the adaptive capability of the ACC system is tested. Under different vehicle speeds and traffic conditions, the ACC system is tested to see whether it can automatically adjust the vehicle speed and maintain a safe distance from the vehicle ahead.

Emergency braking test: Test whether the ACC system can brake automatically in an emergency, and check whether the braking distance meets safety requirements.

Vehicle collision test: Test the safety performance of the ACC system in a simulated vehicle collision. Check whether the system can detect collision danger in time and take appropriate measures to avoid accidents.

Real road test: Test the performance of the ACC system on real roads. Test whether the system can work properly under different road conditions and weather conditions, and check whether the system can adapt to different driving styles and driving habits.

It should be noted that during the test, it is necessary to ensure strict compliance with traffic regulations and safety requirements to ensure that no danger is caused to other road users during the test.

Testing of Automobile Emergency Braking System

It can be divided into the following steps:

Check the braking system: First, you need to check whether the vehicle's braking system is normal, including the level of brake fluid, the wear of brake discs and brake pads, etc.