When people talk about driving, or use body language to express themselves while driving, the first action of the subconscious is often to raise their hands, pretend to hold the steering wheel and then turn left and right. The steering system of a car is undoubtedly one of the most important elements of the driving experience.
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The earliest steering system, through a simple rigid shaft connected to the hand-wheel and steering mechanism, transmits steering commands to the road-wheel and also feeds the vehicle's perception of the road to the driver.
With the development of the automotive industry, this mechanical connection, known as the steering column, has evolved into a complex electromechanical assembly that plays an important role in vehicle control, comfort and performance safety. In the process, the world's leading supplier of steering and powertrain systems - Nexteer Automotive Systems as the inventor of the oscillating adjustable steering column and the energy absorbing steering column, continue to promote the evolution of the steering column field And development.
For more than a century since the development of the automotive industry, rigid mechanical connections between the steering column and the wheels have always existed. In today's rapid development of advanced driver assistance systems (ADAS) and autonomous driving technology, if the steering system is integrated into the vehicle control and the command of the central processor is to be commanded, it is necessary to abandon this traditional mechanical connection and add intelligent processing. The actuators and actuators precisely and safely control the strength and angle of the steering. This technology -- that is, the "wire-controlled steering" - has actually quietly matured.
How strong is the wire control technology?
It sounds like a sci-fi "wire-controlled steering technology". The principle is simply to install an actuator on the steering column and the wheel rack. The data is collected and transmitted to the central computer (also known as the advanced driver assistance system electronic control unit). The steering system, in turn, converts the data into a mechanical steering function to achieve steering. Listening may be simple, in fact, the wire-steering technology makes the automobile industry take a big step towards autonomous driving. The basis of the steer-by-wire technology is the electric steering system, and many of the functions in ADAS and autonomous driving are achieved through electric steering systems – such as lane keeping assistance, traffic congestion assistance, parking assistance, lane departure warnings, and more.
Advanced driver assistance system through electric steering system
As long as you are willing, whether it is a pothole road or a continuous corner, the steering wheel's vibration and back will never bother people's driving. Since there is no mechanical connection between the wheel and the steering wheel, the steer-by-wire steering can selectively feedback the road surface information, greatly reducing the steering wheel vibration caused by the bumps on the road surface, thereby significantly reducing the operating fatigue; for the driver's operation, it can shield any "defective" Move to ensure the car runs smoothly. The excellent steering feel in these operations is the Nexteer Quiet WheelTM Steering, which eliminates the safety hazard associated with the rapid rotation of the steering wheel during autonomous driving. Driver's sense of security. In addition, vehicles equipped with the Silent Steering WheelTM system can also be equipped with a “fully retractable†steering column that automatically retracts into the dashboard in autopilot mode, increasing available space and improving cockpit comfort, allowing the driver to Engage in other activities. During the driving process, returning mail, writing programs, watching movies, and playing games are not only within reach, but also become safer and more comfortable.
Nexteer Quiet Wheel(TM) Steering
The intelligent driving experience does not give the steering wheel control to the vehicle completely, but allows the driver to switch between safer and more intuitive between manual and automatic driving. This is where the Nexteer Steering on DemandTM System shines – it not only switches between driver's man-made control and automatic driving control, but also gives the driver the freedom to follow. Customize multiple driving modes, including sport mode, comfort mode and manual control mode. In the personalized custom mode, the driver can also set the power of help, the size of the virtual position, the feedback of the road, etc., so that the control experience is different. The driver only needs to turn the steering wheel to transmit the intention, and he can realize the feeling of control of the pure mechanical steering system.
Nexteer Steering on Demand(TM) System
Automated future of control
When it comes to autonomous driving technology, safety is a topic that cannot be avoided - people need a "safer" car first, followed by a "more convenient and more comfortable" car - and safety, it is autonomous driving. Initial heart." It is easy to get tired and distracted when driving, but the computer will not fatigue; people will panic when multitasking, but the computer can easily synchronize. Ideally, an autonomous vehicle can integrate driver and road information, surpass humans in both field of view and response speed, and can better avoid safety hazards caused by human factors or operational errors. With industry-leading redundant components and network security technology, Nexteer ensures driving safety from start to finish. Nexteer monitors drivers, vehicles and roads with software and sensors and continuously transmits data to the steering system, allowing the vehicle to anticipate and perform safe maneuvers. Imagine a driver driving through an intersection that has just rained, the road is slippery, and there are vehicles waiting to pass on all three sides. At this time, the road monitoring equipment has already identified the slippery road surface and performed safe steering control. At the same time, the driving vehicle also issued a hazard warning to other vehicles at the intersection to inform them of the road surface and the driver's movements -- everything They are all real-time and synchronized. In all communication and transmission of information, Nexteer's network security system protects the security of data, always verifying correct steering instructions and ensuring secure links.
When people drive a car with wire-steering technology, people can not only enjoy the safety and worry of automatic driving, but also feel the automatic correction of your driving style in the manual control mode - even if the driver is A rookie can also liberate his brain and hands and experience the fun of driving. This may be the most important meaning of the wire-steering technology.
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