1.DAS wire active steering system
DAS wire Active Steering English called Direct Adaptive Steering, fresh technology is actually what this technology is not as early as the 1970s, American Astronautical Bureau already using this electronic control system in the spacecraft’s control system. This spaceship called Flyndash; Byndash; Wire system, has been widely used in the control system of jet fighters, part of civil aircraft, as well as the ship’s. This technology is now being placed under the control of the vehicle, Nissan has announced that it will use in its Infiniti luxury brand new product Q50.
■ system theory
This conventional configuration with a steering wire steering system similar to the system structure, but also by the steering wheel, steering column, steering gear components. Except that it is more than 3 sets the electronic control unit ECU, the operation of the steering feedback device, the clutch wheel.
■ Features
● fast response
mentioned this technology as early as the 1970s had already applied to the spacecraft, it is now widely used in jet fighter, part of the airliner, the sensitive you may have sniffed out one of its advantages. Yes, this is the reaction speed. It abandoned the traditional mechanical structure to change by an electronic control signal. Against the clock fast jet fighter is the value of this advantage, we chose this form of control.
● comfort and good
there is no mechanical connection of the burden, so the system will filter out most of the unnecessary vibration. That is when traveling over rough roads, especially in the more obvious rut road, the steering wheel will not be because of dramatic changes in the road surface and excessive vibration, motorists can be more smooth control of the steering wheel.
that you see here may be worried about the road flu, Nissan has long been considered in this regard. After the ECU in the collection to road conditions and vehicle runout information,Will be reserved to the steering actuator with an electronic signal transmission instruction, then turns back operation will simulate the environment in which the vehicle is traveling when the lower desired feedback intensity.
● selectively driving experience and extension
In addition to the two above mentioned advantages, Direct Adaptive Steering also works with the Infiniti Drive Mode Selector technology, provides four driver different preset steering modes and a custom driving mode selection function. This allows the driver to change the reaction of the vehicle steering system according to different personal driving habits and road conditions.
In addition, Direct Adaptive Steering may also be used with Active lane control (lane keeping system), when the camera inside the rear mirror of the vehicle deviates from the lane when the vehicle is found, Direct Adaptive Steering and automatically start when appropriate turn signal input, helping to drive the vehicle back on the right track, which play to avoid accidents.
Other features ●
In addition to the above mentioned advantages, since there is no mechanical connection, so that the operator’s seat leg room would be better than before, while at the time of a vehicle collision, the steering the possibility of invading column is also reduced, vehicle safety can be improved. It is envisioned that, if future Q50 IIHS 25 similar percentage offset collision energy absorbing structure so that the front can not display all of the fist test, which is a driver’s seat dummy leg score may be higher than the mechanical connection of the steering system model used.
● The system is safe?
stated advantages of this system for a long time, I think there will be many people’s minds a doubt that this system safe? In case of failure of the electronic system would mean that the vehicle can not be manually manipulated, these problems engineers have already countermeasures. First, a control ECU, i.e. an electronic control unit provided three groups, each play a standby function, a set of problems will soon have a backup system to function. If, unfortunately, all three groups of fault, it immediately binds to the steering column and steering clutch between the engine, the same line as the conventional steering system architecture, in order to ensure the normal driving.
Full Summary:
Direct Adaptive Steering technology with fast response speed, good comfort, easy layout, occupying a small space inside the vehicle, etc., there are three groups on their escort ECU security. In addition, the official said they had to Direct Adaptive Steering system was actually tested more than 400,000 kilometers, can be said in the normal life of a model where the system can function properly. About equipped models, the European and the US markets, the 3.5L Hybrid models Q50 of this technology will appear as standard in Europe and the United States 2.2L 3.7L models will be configured appear as an option, the other models will follow the cash electronic hydraulic power system.
References “no discard handling Infiniti-wire steering system.”