Mercedes-Benz 4MATIC, an Electronically Controlled Four-Wheel Drive System for Improved Active Safety 861371
Daimler-Benz have developed an automatically/electronically controlled traction system, the 4MATIC. Great store has been set by active safety. This paper deals with the problems involved in 4-Wheel drive and analyzes the reasons which led to the 4MATIC concept.
Depending on the conditions encountered, the drive components engage automatically one after the other in the sequence front-wheel drive - interaxle differential lock - rear axle differential lock. The engagement, and thus the approaching limits of driving dynamics, is indicated to the driver by an indicator lamp so that he can adjust to the deteriorated conditions in time. A further important advantage of this system is the automatic disengagement of the differential locks when braking so that the anti-lock braking remains fully effective.
Citation: Zomotor, A., Leiber, H., Neundorf, S., Richter, K. et al., "Mercedes-Benz 4MATIC, an Electronically Controlled Four-Wheel Drive System for Improved Active Safety," SAE Technical Paper 861371, 1986, https://doi.org/10.4271/861371. Download Citation
Author(s):
A. Zomotor, H. Leiber, S. Neundorf, K.-H. Richter, K.-H. Buechle
Affiliated:
Daimler-Benz AG
Pages: 12
Event:
Passenger Car Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE Transactions 1986-V95-86
Related Topics:
Active safety systems
Anti-lock braking
Four wheel drive
Vehicle drivers
Traction
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