By Frédéric Holzmann
One of many subsequent demanding situations in vehicular know-how box is to enhance greatly the line security. present advancements are targeting either automobile platform and various guidance platforms. This ebook offers a brand new engineering method in response to lean automobile structure prepared for the drive-by-wire technology.Based on a cognitive performance cut up, execution and command degrees are distinct. The execution point centralized over the steadiness keep watch over plays the movement vector coming from the command point. At this point the driving force generates a movement vector that's always monitored through a digital co-pilot. the mixing of tips platforms in a security appropriate multi-agent procedure is gifted right here to supply first an sufficient suggestions to the motive force to enable him get better a perilous state of affairs. strong thoughts also are offered for the intervention part as soon as the command automobile should be optimized to stick in the safeguard envelope.
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Extra info for Adaptive Cooperation between Driver and Assistant System: Improving Road Safety
A tire model is then used to calculate the tire–road friction. The inherent problem with this method comes from the discrete measurement on the tires and give data with too low frequency. Furthermore, the integration of several sensors and their wireless communication to the body shield implies high cost for serial implementation. These four methods of measurement are dealing with both road surface and tire. Therefore their accuracy can be relative good but can only provide past measures. In the next couple of years the assistant systems will have to deal with a wider environment.
The integration of actuators within the wheels can be prepared by using temporarily a torque vectoring. By introducing an additional clutch to 54 3 Actuators and drive train architecture © Siemens VDO Automotive Fig. 2. In-wheel integration of the actuators manage the torque ratio for front/rear axle and a diﬀerential for the front axle, it will be possible to bring independently the optimal torque to each wheel. 5. 2) with local intelligence within the upgraded wedgebrake unit as wheel unit. The torque vectoring is now replaced by a direct energy supply to the wheel.
Finally actuators integration will provide new degrees of freedom. 1 Migration strategy to a full safe drive-by-wire platform The drive-by-wire technology replaces the mechanically linked actuators with actuators controlled only electronically over the network. For example, steerby-wire removes the steering column between the steering wheel (sensor) and the steering actuator. As there is no mechanical back-up anymore, redundancy of the sensors, networks, actuators and even energy supply is required to avoid loss of actuator control.
Adaptive Cooperation between Driver and Assistant System: Improving Road Safety by Frédéric Holzmann