Autonomous Vehicle Engineering - May 2021 - 31
Toyota
ADAS
Toyota's Advanced Drive instrument cluster indication for potential automated overtaking maneuver.
Honda Sensing Elite " assesses the situation and assists
the lane change and/or passing of the other vehicles
under certain conditions, " Honda explains. When the
system detects a car in front being driven at low speed,
it " notifies the driver and then assists with the passing
of the vehicle and the return to the original lane. "
In the cabin, indicator lights on the steering
wheel, at the top of central touchscreen and the top
of the glovebox area illuminate to indicate various
system activation levels. The steering-wheel light
alone indicates hands-off functions are activated,
while blue lights at all three points indicate activation of Traffic Jam Pilot. All three lights blink orange
to indicate the system requesting a " handover " for the
driver to take control.
Toyota's driving 'Teammate'
In saying its new Advanced Drive driver-assist
system is a based on the Mobility Teammate Concept,
Toyota seems to be splitting the difference between
its two long-discussed driving-automation strategies: " Guardian " for safety-focused driver-assist
functionality that operates largely in the background
and " Chauffer " for more-sophisticated degrees of
automated control. In announcing the system's
AUTONOMOUS VEHICLE ENGINEERING
availability in Japan, the company stated, " With the
aim of ensuring that drivers remain the focus even as
technologies advance, the driver and car confirm each
other's status by engaging in a dialogue, leading to safe
driving and comfortable mobility. "
The Advanced Drive system is designed exclusively for expressways or other vehicle-only roads,
Toyota said. After inputting a destination into the vehicle's navigation system, Advanced Drive will " detect the
situation, make decisions, and assist driving under the
driver's supervision according to actual traffic conditions. It can keep the vehicle in its lane, maintain the
distance from other vehicles, navigate a lane split,
change lanes and overtake other vehicles until leaving
the roadway for the destination. " Like Honda's new
system, the driver can entrust a lane-change to automation by using the turn-signal lever; Advanced Drive
also will automatically adjust speed to accommodate a
vehicle merging into the highway.
The 2022 Lexus LS 500h and Mirai fitted with
Advanced Drive use a single, low-mounted front
lidar sensor. The cars also incorporate Advanced Park,
which uses 360-degree sensing to fully control throttle,
steering and brakes for parallel and back-in perpendicular parking maneuvers. ■
May 2021 31
Autonomous Vehicle Engineering - May 2021
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