Chassis, Control Systems and Equipment
CHASSIS, CONTROL SYSTEMS AND EQUIPMENT sponding to the demand for higher levels of technological 1. Introduction advances related to the chassis, not only for standalone As social expectations concerning autonomous driving, steering or brake control, but also for their integrated safety, and environmental performance are intensifying, control, decreasing rolling resistance, and reducing the circumstances affecting automobiles are becoming in- weight. creasingly sophisticated and complex. This article describes the chassis and vehicle control Systems corresponding to Level 2 autonomous driving, technology trends with a focus on the new models and which provide steering assistance to stay in the lane technology released in 2018. The main new models while maintaining an appropriate distance from the pre- launched in and outside Japan in 2018 are shown sepa- ceding vehicle or run at a set speed when in the lead, rately in Table 1(1). However, technologies such as elec- are becoming more common. They include the Nissan tronic stability control (ESC) that are mandatory in vari- ProPilot, Volvo Pilot Assist, and Mercedes-Benz Intelli- ous countries, and warning functions that are part of gent Drive. Autonomous driving technologies to change active safety technologies, have been omitted. lanes automatically on expressways, as well as to handle 2 Suspension multiple lanes and general roads, including intersections, are being developed for eventual commercialization. 2. 1. Base suspensions In the area of safety, almost all new models entering Table 1 shows the suspension types for new models the market qualify as a Safety Support Car or Safety launched in 2018. Recent trends in suspension types Support Car S, the safe driving support vehicles the gov- were maintained and presented nothing new.
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