Technology: What exactly is the iTAC that BYD has always talked about?
Kevin WongMay 08, 2024, 12:03 PM
BYD has always used technology as a selling point for their products, such as their blade battery, e-platform 3.0, unibody and highly integrated electric drive system, etc.
Among many technical terms, there is one technology called iTAC, the full name is intelligence Torque Adaption Control, which is BYD's intelligent torque control system.
This system has been applied to BYD's current models, such as the BYD SEAL Performance AWD model, which is equipped with this technology. What exactly is this technology? What does it do?
Looking at this term alone, it's easy to think of Mazda's GVC system, the two have similarities, but there are more differences. Both systems control the output torque of the power system, and assign it accurately to a single side or even a single wheel. The difference is that the power source of GVC system is the internal combustion engine, while the power source of iTAC system is the synchronous motor. Besides, the purpose of GVC is to improve the handling performance of the vehicle in the curve, while iTAC is more focused on the safety of the vehicle control. Of course, iTAC can also improve the handling performance of the vehicle.
In a word, the iTAC system, based on the extremely fast response speed of the motor, can adjust the output torque of each motor in real time, minimize the changes in the vehicle's power, and improve the safety, comfort and handling of the vehicle.
Generally speaking, to maintain vehicle stability requires to monitor the vehicle's operating status in real time. The past methods usually rely on wheel speed sensors, which monitor changes in wheel speed. If the speed of one side of the wheel rises sharply, it is likely to have skidded, and the braking system begins to intervene. However, the wheel speed sensor divides each round of the wheel end into only 32 or 48 collection positions, and the accuracy of information collection is low, which can't meet the requirements of electric vehicles.
iTAC technology can significantly improve the speed and precision of data collection. Through the use of the motor rotation sensor, each rotation of the wheel can be divided into 4096 collection points. In terms of response speed, the recognition accuracy of iTAC is improved more than 300 times, and can predict wheel speed changes more than 50ms in advance. In case of abnormal grip at the wheel end before slipping, the system can recognize the abnormal grip in advance and adjust it, allowing the vehicle to regain stability.
On the control strategy, traditional control strategies can only control the vehicle by reducing the torque through braking when facing slip. However, iTAC, based on its advanced prediction, provides multiple methods such as transferring torque, properly reducing torque, and outputting negative torque for the characteristics of quick motor response speed and more precise speed adjustment.
BYD has previously carried out a series of tests on the iTAC system. According to the official low adhesion surface test results, in the 0-60km/h snow straight line acceleration, iTAC allows the vehicle to avoid starting slippage, and the acceleration time is 0.7 seconds faster than that of vehicles without iTAC functions. When starting on ice-asphalt docking surface, iTAC technology significantly suppresses wheel slippage, leading to the vehicle quickly drive off the ice. In the snow step-response test, iTAC keeps the vehicle in a stable driving state with the vehicle sliding in a stable linear form. In the circular snow test, iTAC technology allows the vehicle to maintain a drift state, without too much steering correction, and at the same time increases the speed by 5-10km/h.
This difference under the low adhesion road surface is also equally applicable to wet and slippery surfaces. It is clear that the iTAC system can enhance the stability of the vehicle by precisely adjusting the torque output, thus achieving the aim of improving safety and control.
If any infringement occurs, please contact us for deletion
![BYD Seal 06 GT is about to debut: a cruising range of 600km and a new pure electric GT choice](https://img4.pcauto.com.cn/pcauto/images/auto_cms/20240823/22032860_800x600.jpg)
BYD Seal 06 GT is about to debut: a cruising range of 600km and a new pure electric GT choice
On August 23, BYD Ocean Network officially announced that its brand new pure electric mid-size sedan is named BYD Seal 06 GT, which will debut at the Chengdu Auto Show in China on August 30. The new car is built on the BYD e 3.0 Evo platform, adopts a new ocean aesthetic design language, and is aimed at the mainstream pure electric mid-size sedan market.The official statement, BYD Seal 06 GT will become the first GT created by the BYD Ocean Network, promoting the development of the seal series i
![605 km range: 2025 BYD Song Plus EV debuts with upgraded smart cabin](https://img4.pcauto.com.cn/pcauto/images/auto_cms/20240819/21961987_800x600.png)
605 km range: 2025 BYD Song Plus EV debuts with upgraded smart cabin
On August 19th, it was learned from BYD official that the 2025 BYD SONG PLUS EV officially went on sale. The new vehicle has launched three configuration models with a price range of 149,800 - 175,800 RMB. As a revised model, the new car has been upgraded in detail, intelligence, and three major aspects of configuration, adding 19-inch two-color wheel hubs, new Xuantian color / sandy rice interior color matching, equipped with intelligent cockpit high-end version -DiLink100 and standard 16 core
![BYD Yangwang U9 officially delivered: 0-100 km/h in 2.36 seconds, top speed of 300 km/h](https://img4.pcauto.com.cn/pcauto/images/auto_cms/20240819/21958101_800x600.jpg)
BYD Yangwang U9 officially delivered: 0-100 km/h in 2.36 seconds, top speed of 300 km/h
On August 16th, we learned from the official of Yangwang Auto that the first car of its second model, Yangwang U9, officially came off the assembly line and is about to start delivery. The new car was launched on February 25th at a price of 1.68 million yuan. Yangwang U9 is positioned as a pure electric sports car with easy four-way platform technology and Yun-N-X intelligent body control system, accelerates from 0-100km/h in 2.36 seconds, and can reach a top speed of 300km/h.On the exterior, th
![Official interior pictures of BYD SEAL 06GT release, the first GT for young people has arrived](https://img4.pcauto.com.cn/pcauto/images/auto_cms/20240828/22099724_800x600.png)
Official interior pictures of BYD SEAL 06GT release, the first GT for young people has arrived
On August 26, BYD officially released the BYD SEAL 06GT interior official map.BYD SEAL 06GT is acclaimed as "the first GT for young people", and is expected to make its official debut at the Chengdu Auto Show in China.As can be seen from the official image, the interior design of the BYD SEAL 06GT still adopts the latest family design style, with a floating-style center control screen, all-LCD meter, three-spoke steering wheel, and electronic gear lever, similar to that on the BYD SEAL 06 DM-i.
![Proton S70 four models configuration comparison: RM 73,800 to RM 94,800, what is the difference?](https://img4.pcauto.com.cn/pcauto/images/auto_cms/20240820/21978669_800x600.jpg)
Proton S70 four models configuration comparison: RM 73,800 to RM 94,800, what is the difference?
Proton S70 is a compact car that was officially launched in November 2023. It was produced at the Proton's Tanjung Malim factory and offers four configurations: Executive, Premium, Flagship, and Flagship X with prices ranging from RM 73,800 to RM 94,800. So what is the specific price difference between these four models? This article will analyze the differences based on hardware configurations to provide you with purchase guidance.2024 Proton S70 1.5T Executive: RM 73,8002024 Proton S70 1.5T Pr
Popular Cars
Car Compare