Lexus recently released information on new, advanced active safety technologies which will be coming on the all-new Lexus LS. The redesigned LS begins production early December so the all-new flagship should make its dealership debut in January – but we will keep you updated with any changes in the currently scheduled production. The Lexus LS will be equipped with the already well-established active safety package that we have on Lexus models now, Lexus Safety System+, combined with Lexus Safety System+ A. This new system will be available on models built for Japan, North America, and Europe and promises to deliver a safer, more-secure driving experience in a broad range of situations. The new support system has been designed to be clear and intuitive by providing the driver with information ranging from support status notifications to information on vehicle behavior during safety feature operation via a large Head-Up-Display (HUD) and a multi-information display.
The Lexus LS will pioneer a new age with an extensive application of advanced safety technologies. Lexus Safety System+ is based on the Integrated Safety Management Concept and includes PCS with Pedestrian Detection, Dynamic Radar Cruise Control, Lane Departure Alert/Lane Keep Assist and Automatic High-Beam Headlamps. The new Lexus Safety System+ A will provide advanced pre-collision support and sophisticated driving assistance. What are these new supportive driving assistance technologies?
Active Steering Assist, a world-first technology, is one of these new, sophisticated driving assistance systems that will debut on the new Lexus LS. Active Steering Assist is said to help prevent collisions that cannot be avoided through automatic braking alone
Front Cross Traffic Alert (FCTA) is designed to warn the driver of the possibility of head-on collisions at intersections.
Lexus CoDrive will assist the driver in maintaining in-lane driving or in changing lanes.
The chart above provides a full list of safety systems provided by both Lexus Safety System+ and the new Safety System+ A.
Not only will the new LS debut the supportive new safety system, but it will also see enhancements to the comprehensive Safety System+ that we use currently. Below we explore each of the new, advanced active safety technologies.
Pre-Collision System (PCS) – NOW with Pedestrian Alert and Active Steering Assist
The all-new LS will have the conventional PCS, which supports collision prevention and damage reduction through alerts, as well as a world-first technology, Pedestrian Alert, and Active Steering Assist. Pedestrian Alert specifies the direction of the presence of a pedestrian. If there is a possibility of a collision with a pedestrian ahead, the direction of the pedestrian’s presence is shown in an animation via the LS’s large color HUD, contributing to intuitive recognition on the part of the driver. Active Steering Assist determines when there is a high possibility of collision with a pedestrian in the lane of travel or with a continuous structure, such as a guardrail, and if the system also determines that it is difficult to avoid a collision with brake control alone but that it might be avoided with steering control, the system assists in collision prevention through automatic steering control in addition to activating an alert and applying the brakes.
… We are definitely getting close to autonomous driving with this one!
Lexus CoDrive is described as advanced driving assist technology that can lead to automated driving. Lexus CoDrive adds Lane Change Assist (LCA) to the basic functions of Dynamic Radar Cruise Control and Lane Tracing Assist (LTA) to provide steering support that is in line with the intentions of the driver and lane-changing support on highways or motor-vehicle-only roadways. “By providing seamless driving support on roads with curves or in traffic jams, Lexus CoDrive largely decreases driver burden. It coordinates with the LS’s large HUD and multi-information display to clearly notify the driver of the state of support provided,” explains Lexus.
Lane Tracing Assist (LTA)
Lane Tracing Assist provides lane-keeping support by way of steering control when Adaptive Cruise Control is in operation. In addition to lane line detection by way of a camera, tracing the path of the vehicle ahead enables assistance even when lane lines cannot be recognized. Examples of this could be in low-speed driving through traffic when there is little distance between you and the vehicle in front of you. If the speed of entering a curve is found, based on navigation data, to be too fast, the driver is alerted by way of the LS’s HUD and MID, and the vehicle is automatically slowed.
Lane Change Assist (LCA)
LCA, which uses driver manipulation of the turning signal as a cue to activate, supports lane changes by monitoring the surrounding road environment and, at the appropriate timing, controls steering, as well as acceleration and deceleration. – so you better drive really well, or else Lexus will take over…
Driver Emergency Stop Assist
Driver Emergency Stop Assist is coordinated with LTA. Lexus explains the new system: If non-operation by the driver continues during use of LTA on a motor-vehicle only roadway, Driver Emergency Stop Assist supports the driver through audio and visual alerts and gentle deceleration. It then activates the vehicle’s hazard lamps and horn to alert those outside the vehicle to help prevent or reduce damages to the vehicle or to others, while slowing and eventually stopping the vehicle within its lane. After stopping, it unlocks the doors and activates an automatic SOS (HELPNET) connection for a rescue request, contributing to early driver rescue.
Two-Stage Adaptive High-Beam System (AHS)
With eight LED lights at the top and 16 below (on each side), the Two-stage Adaptive High-Beam System provides optimal lighting by way of separate on/off control of each row of LEDs, enabling a finer control of light strength and distance compared to the existing LED-based AHS. This allows higher frequency of high-beam driving without blinding preceding or oncoming vehicles, thus improving nighttime visibility.
Front Cross Traffic Alert (FCTA)
To help prevent collisions at intersections, FCTA is meant to detect forward cross-traffic vehicles. Using forward direction radar and world-first alert to tell the driver the direction from which a cross-traffic vehicle is approaching the immediate intersection. Alerts are displayed on the HUD and if the vehicle proceeds regardless of the presence of an approaching vehicle in cross traffic, warnings are also sent to the driver via a buzzer and the LS’s MID.
Road Sign Assist (RSA)
RSA acquires road sign information using a camera and navigation maps and then displays such using the LS’s HUD and MID, thus reducing driver failed to recognize signs and encourage safe driving.
What else is new? The 2018 Lexus LS will also provide drivers with several other active safety technologies including Parking support brakes, Panoramic View Monitor with side clearance view and cornering functions and a digital rear-view mirror.
Needless to say, the all-new LS will be at the forefront of advanced safety technologies. We look forward to seeing these advanced systems in action when the 2018 LS debuts later this Fall and begins to arrive at our dealership January 2018.