Venue provided: Shenzhen Future Intelligent Connected Transportation System Industry Innovation Center
Smart Car Leaderboard
Jizhi + ICT-300 smart car ranking list was released, the list covers 56 popular cars, 30 popular brands, who is the strongest smart car? For details, please click on the image link below:
THE ICT-300 test items and scoring criteria can be found in the "Pacific Automotive & Electric [Smart Car] ICT-300 Evaluation Standards".
The evaluation content directory
Smart driving
In the intelligent driving part, xiaopeng G3i scored 84 points, which is not a bright achievement for new forces. The reason for dragging the results is mainly the performance of active safety, the G3i dummy three evasion tests all failed to challenge, and the tunnel fixed fake car avoidance is also a failure. This performance is surprising to me, because in the top 20 models of the ICT-300 smart car list, it is rare that the dummy circumvention test fails all.
Sensor configuration
The Xiaopeng G3i is equipped with the XPILOT 2.5 driver assistance system, which is more beginner than the XPILOT 3.0 and 3.5: there is 1 front millimeter wave radar, 2 rear angle radar, 12 ultrasonic radars, 1 forward-looking driver assistance camera, and 4 surround view cameras. Such hardware performance is more traditional, and many models also use such solutions. As for the advanced gadgets such as trinocular cameras and lidar, placed on the G3i with less than 200,000, one is that the cost is not appropriate, and the other is that the electrical and electronic architecture is not supported.
Upgrade capabilities
Xiaopeng G3i supports vehicle OTA upgrades, the most recent OTA push was on March 4, the content of the upgrade includes Xiao P's new sound, optimize the full-scene voice, optimize the XPIRAT 2.5 intelligent driver assistance system part of the function experience and other functions. However, regarding the improvement of the performance part, Xiaopeng G3i has not been pushed to upgrade at present, so it has not yet obtained a score. In fact, in terms of safety-related aspects, OTA upgrade optimization after delivery is not the best solution for consumers, but in the car part, through continuous OTA, consumers can get the latest functional experience, which is a major benefit of OTA.
Closed site comprehensive testing
Adaptive cruise test
Test conditions: The test car starts the adaptive cruise function at 80km/h, and sets the following distance to the second compartment. Then, during the driving process, the target vehicle will encounter non-emergency congestion in front, and then the target vehicle will slowly stop and start again after 10 seconds after stopping.
High-speed cornering is maintained
Test conditions: The test vehicle starts the adaptive cruise and lane keeping functions at 80km/h, and then the vehicle passes a curve to test the vehicle's lane-keeping ability at high speed.
Special Terrain: Pile Identification
Test conditions: The test vehicle opens all driving assistance functions at a speed of 30km/h to test whether there will be warnings or avoidance actions when the vehicle encounters the pile bucket group.
Pedestrian scene recognition and avoidance
The above three items are tests of the driving assistance function of the vehicle, and as a smart car, in addition to helping the driver "drive", it must also help the driver avoid possible traffic accidents. So next we will conduct an obstacle avoidance test on the Xiaopeng G3i, that is, we will find some dummies and fake cars to come out and see if the G3i can brake the avoidance in time.
Fixed dummy identification and avoidance
Test conditions: a child dummy is fixed in the middle of the zebra crossing, the test car starts the adaptive cruise at a speed of 50km/h and all the driving assistance functions pass to see if the test car can stop in time in front of the dummy.
Mobile dummy identification and avoidance
Test conditions: An adult dummy will pass the zebra crossing at a speed of 5km/h, and then the test car will turn on the adaptive cruise at a speed of 40km/h and all the driving assistance functions will pass to see if the test car can stop in time in front of the dummy.
Mobile dummy ghost probe identification and evasion
Test conditions: The child dummy crosses the zebra crossing at a speed of 5km/h, and the test vehicle starts cruising at 40km/h and passes all driving assistance functions. Unlike the mobile dummy crossing test, the ghost probe will add a fixed obstacle car to the front side of the zebra crossing, which will form an emergency situation of "ghost probe" when the test vehicle is close to the zebra crossing.
Tunnel fixed obstacle vehicle identification and avoidance
Test conditions: A fixed target vehicle model is placed in the simulated tunnel, and the test vehicle starts cruising at a speed of 50knm/h and all driving assistance functions are close to see if the final test vehicle can avoid the target vehicle. The project of the tunnel fixed target vehicle is actually a simulation of the situation that when entering the tunnel during daily driving, there is a sudden stop in the tunnel. In this case, because the driver has a large contrast in light inside and outside the tunnel, there is a high probability that the car stopped in the tunnel will not be found in time, which will eventually lead to a rear-end accident. If the vehicle's driver assistance system can avoid this type of obstacle car, it will give the occupants an extra guarantee.
Vehicle emergency congestion identification and avoidance
Test conditions: The target vehicle will be more urgent at a speed of 20km/h, while the test vehicle will cruise at a speed of 50km/h.
Automatic parking
Summary of tests
Open road testing
In actual high-speed road tests, the G3i turned on ACC adaptive cruise and LCC lane center control functions. In terms of car performance, the acceleration and deceleration of the car within 100km/h is still relatively stable, and in the case of 120km/h, the deceleration will be more urgent. In terms of lane center function, the system can keep the body in the middle of the lane well, but the steering wheel steering adjustment process can obviously feel the adjustment of one grid and one block segment, and does not give the driver a very linear feeling.
The light lane change function can also be used normally, if the front and rear space is enough, the system will automatically start to change lanes after the light. In fact, there is only a light lane change function, which is not much sense, because the efficiency of using lights to change lanes when there are many cars is extremely low, and it is meaningless to use lights to change lanes when there are few cars. If there is still high-end driving assistance and automatic lane change in the future, it has certain practical significance.
Smart cockpit
After testing intelligent driving, we entered the link of smart cockpit. In the era of smart cars, the smart cockpit is actually the most core and the most easily perceived part of the upgrade, so the good or bad of the smart cockpit can be said to directly affect the intelligence level of a car. G3i is equipped with Xmart OS car system, Xmart OS is accompanied by the release of G3, in the G3i has also been upgraded to version 2.1, then after a long period of optimization, this car machine system can be satisfactory?
Screen effects
Vehicle performance
In today's electronic era, the importance of the on-board system for the vehicle is self-evident, a set of functions-rich, interactive experience of the car machine system not only makes the daily use of the car more comfortable, but also improve the safety of driving. In terms of vehicle performance, we quantitatively score the fluency of the system, UI design, feature richness, instrument function richness, and scalability.
Fluency, ease of use, and UI design
The versatility of the car
Meter feature richness
Extensibility of in-vehicle systems
Voice interaction
Voice interaction is an important embodiment of the degree of cockpit intelligence, but also a major publicity point for many intelligent cars today, as for the recognition ability of the speech system, recognition speed, and the functions involved in the control, there are many differences between different models on the market.
In this part of the test, we will divide it into several aspects such as conventional function implementation, recognition speed, error correction ability, semantic association ability, etc., to see how intelligent the voice interaction of the VENUS system equipped with MARVEL R is.
The Xiaopeng G3i voice interaction system supports navigation, music, air conditioning and window control functions, and the overall recognition and response speed can be satisfactory.
In the speech correction link, although G3i's recognition speed of the language order is faster, in the face of non-standard Mandarin, the system can recognize the "navigate to the Bund" after repeated tests, and the other two sentences cannot be correctly recognized. Of course, the difficulty of this test is relatively high, the average person's Mandarin will not be so "ordinary", the average person's Cantonese will not be so "water", but the ability to correct pronunciation is an indispensable part, because the mainland population is large, there are differences in local languages, and the development of Mandarin is naturally different.
Intelligent advanced requirements
After looking at the surface texture and internal functions of the car machine, we put forward higher level requirements for the smart cockpit, involving some functions that are more in-depth with the car life, such as remote control of the vehicle, personalized memory, online updates and interesting small functions.
Performance testing
Earlier, we have seen the performance of Xiaopeng G3i in the ICT-300 intelligent car evaluation standards for intelligent driving and intelligent cockpit. Next, the car itself will be controlled by acceleration, braking, elk, piling and noise tests to see how it performs.
Let's look at the results first: Xiaopeng G3i performed well in the acceleration test, but the brake test needs to be improved, the change of tires can be solved, the daily handling is more flexible, and the risk avoidance ability in the elk test is also higher, and it is generally excellent.
0-100km/h acceleration test
Acceleration test using the ejection start method to carry out, the electronic body stability system remains closed, the rear wheel slipped slightly when starting, but quickly recovered grip, the mid-section acceleration is still powerful, the whole process is very smooth, and the final measured Xiaopeng G3i's 0-100km/h acceleration time is 6.98 seconds.
100-0km/h brake test
In the brake test, the Xiaopeng G3i braking force output is very linear, and the initial braking force is very strong, but due to the soft suspension and the heavy front, the front of the car is somewhat under pressure during the heavy braking, and the final measured braking performance is 39.71 meters.
Elk test
The purpose of the elk test is to test the vehicle's ability to avoid danger, test the vehicle suspension and dynamic adjustment skills. In our elk test, the default electronic system state is turned on (not manually turned off ESP, etc.) to restore the daily car situation as much as possible.
Although the body is shorter, the softer suspension still cannot support the body very well, but the ESP intervention is late, which can give the driver more tolerance, so the speed of passage is 70km/h, which is not bad.
Winding test
In the pile winding experience project, our standard is not to pursue the limit, but to uniformly choose to pass at 60km/h at constant speed, focusing on observing their continuous change of direction body attitude and body controllability, so that we can more objectively examine the suspension performance of the vehicle. The suspension support of the Xiaopeng G3i is not very good, and the chassis flexibility needs to be improved, but due to the short body and precise steering, the performance is not bad.
Noise test
The noise test in the car tests the sound insulation ability of the vehicle. In addition to testing the in-car noise values under the traditional idle, 60km/h cruise, 90km/h cruising and 120km/h cruising, the noise outside the car is also recorded and compared with the in-car noise value in the idle state to see how the vehicle performs on the sound insulation of the environment.
summary
In the end, the Total Score of the Xiaopeng G3i was 188, ranking 12th in the list. G3i can have this result, relying on the intelligent cockpit score, driving assistance and performance test performance is not eye-catching, especially the active safety test, dummy triathlon and tunnel fake car are failures, the performance is disappointing. Intelligent cockpit part and intelligent driving can be said to be a day by day, the cockpit due to the use of Qualcomm chips, coupled with the equipped with Xmart OS, in the function and interaction are satisfactory, and voice interaction in addition to the realization of the car machine can be seen can be said, but also support scenario-based interaction, further enhance the meaning of voice interaction. (Photo/Text: Intelligent Driving / Intelligent Cockpit: Du Qingwei Performance Test: Song Fenghua)