I just stumbled upon this information from the Mazda training manual and thought this would be helpful to have here:
The CX-7 is equipped with Mazda’s new active torque split all-wheel drive system, which debuted on the MazdaSpeed6, featuring a more aggressive transfer of torque to the rear axle in accordance with driving conditions. This intelligent system achieves a satisfying balance between the interactive control over the vehicle that makes it particularly enjoyable to drive, and confident handling stability necessary for snowy, wet or other uncertain road surfaces/conditions; engine power and torque are faithfully and efficiently transferred to the road surface for maximum performance.
The active torque split AWD system uses real-time data input on steering angle, yaw rate, lateral G-force and engine status to determine road surface and driving conditions. The CX7’s onboard computer then automatically determines which of three different modes of front/rear torque distribution should be engaged: Normal, Sport, or Snow (for slippery surfaces). The active torque coupling mounted in front of the rear differential is electronically controlled in accordance with the data provided by the computer, adjusting front/rear wheel torque distribution between 100:0 and 50:50 to deliver optimum drive power to each axle. The result is that the most power and traction are made available under all conditions; positive acceleration and confident handling are provided regardless of constantly changing road conditions, as well as the ability to fully balance the vehicle in a turn by skilful use of the accelerator pedal.
Unlike many competitor offerings, the torque transfer system in the CX-7 seamlessly integrates the inherent stability of all-wheel drive; because the active torque coupling is controlled electronically, it can react to wheel slippage much more rapidly than conventional gear- or fluid-controlled systems. To ensure consistent power delivery under all weather and driving conditions, the Power Take-Off (PTO) system on the centre differential that distributes torque to the rear axle is fitted with its own liquid-cooled cooling system.
Once the computer has shifted into snow or sport mode it pre-loads the rear axle so you don't have to wait for slippage. As oppossed to the system in the 01-04 Tribute where the wheels had to actually slip before the AWD kicked in.
<On the TCS System>
The braking system works in synergy with the CX-7’s Dynamic Stability Control (DSC), incorporating a traction control system (TCS), to exhibit an outstanding level of active safety. The Dynamic Stability Control system is designed to activate when the vehicle is taking a turn too quickly for the road conditions. DSC compares the driver's intended direction (from the steering wheel angle) to the actual vehicle path; if the system senses
understeer or oversteer, it applies braking force, and reduces engine torque if required, to correct the situation.
Traction control systems generally come in one of two primary systems: an ABS-based system, or an engine management system. Both systems use the ABS wheel speed sensors to determine if there is wheel spin (wheel speed greater than vehicle speed). The CX-7 system uses engine management to reduce the amount of power output by reducing fuel, ignition timing and throttle position to reduce wheel spin. This system is superior to systems that use the ABS brakes to slow down the spinning wheel – ABS systems have a tendency to be very jarring in their operation and can overheat the brakes if used for extended periods of time. The CX-7’s traction control system (TCS) deals with the problem of the engine supplying too much power for road conditions right at the source; when wheel spin is detected, the TCS simply reduces the engine’s power output until the wheel spin stops.
DimKatz_CX7 έγραψε: Σκέφτομαι να ρωτήσω αν γίνεται με κάποια πατέντα να επέμβεις και με ένα κουμπάκι να επιλέγεις πάντα την επιλογή χιόνι...δηλαδή να στέλνεις μάξιμουμ ρεύμα στον ηλεκτρομαγνητικό συμπλέκτη..
aar έγραψε:Nasos Mazdaspeed 6 έγραψε:δεν διαφωνω καθολου,αλλα αν φανταστουμε μια εκδοση πιο σκληροπυρηνικη 7αριου μερυθμιζομενες αναρτησεις πχ τι θα εκανε αυτο το αυτοκινητο?
πλακα πλακα ακομη περιμενουμε μια coilover αναρτηση για 7αρια!κανεις και τιποτε ακομη!η Autoexe μονο!
οσον αφορα το βαρος
οταν ειμαι πολυ φαγωμενος το αυτοκινητο στριβει μονο με γραμμες
ενω σε νορμαλ καταστασεις φαγητου γλυστραει και με τα τεσσερα ..
Μέλη σε αυτή την Δ. Συζήτηση : Δεν υπάρχουν εγγεγραμμένα μέλη και 1 επισκέπτης