Grand Cherokee Concierge
The Jeep Grand Cherokee Concierge is specially outfitted with many different innovative technologies designed and engineered to increase customer comfort, convenience and security. The Concierge (and Chrysler 300M IT-Edition) are research projects aimed at developing and testing new forms of interaction between the user and the vehicle. They seek to increase safety, convenience and utility by anticipating customer needs. It is too early to say in what form these innovations will be implemented, but Chrysler engineers are confident that these highly beneficial systems will be incorporated in future Chrysler vehicles – as part of DaimlerChrysler's continued commitment to excellence in engineering and to the vision of “Accident-free Driving”.
The Grand Cherokee Concierge was originally unveiled in June of 2002 in Stuttgart, Germany, at the DaimlerChrysler Innovation Symposium. It made its North American debut (with added features) on October 21st at the Convergence 2002 Conference in Detroit. The Concierge was featured again in the DaimlerChrysler exhibit at the SAE World Congress at Detroit’s Cobo Hall March 3-6, 2003.
Concierge features:
Radar-based front parking aid system, using both visual and audio media, communicates the distance to an object in the vehicle's path. Radar is one of the engineer's prime choices for obstacle sensing, because it has the highest speed of performance, the longest range, and all-weather capability. However, because of the triangular shape of the radar beam, multiple sensors – up to six – are required on the front or back bumper in order to provide seamless coverage. Each additional radar sensor drives up the cost of the system. The Concierge's parking and exit aid is unique in using a combination of radar and rear-facing video to provide optimum parking assistance when reversing the vehicle. The range of the radar sensor allows faster backing and – since a video camera costs less than a radar sensor and many vehicles will be equipped with LCD displays for other features such as navigation aids and night vision – the combination of radar and video results in an optimum solution at lower cost
The Concierge has three radar sensors on the rear bumper. When reversing, it uses the central sensor to maneuver to within about 4 feet (1.5 meters) of an obstacle. At this point, a steady tone indicates to the driver that video surveillance is now operational. The video image is displayed in the rear-view mirror/monitor unit, allowing the driver to confidently park to within ¼ inch (about 0.5 cm) of an obstacle of any shape. Visual feedback is so good that the driver can even close a matchbox with the rear bumper. The video camera provides 100 percent coverage of the area immediately behind the vehicle, including a small child who might be overlooked by a single radar sensor.
Lane departure warning. A combination of front-mounted radar and video sensors is used for adaptive cruise control and lane departure warning. Currently, adaptive cruise control uses a 76 GHz “pencil” radar beam that locks onto the vehicle in front to adjust speed and maintain a safe distance. This works fine while the car in front remains directly ahead, but in curves (for example to the left), the radar may lock onto a slower car or truck in the right lane, thus causing the adaptive cruise control to slow the vehicle unnecessarily.
The Concierge uses infusion of a video signal from a camera mounted on the front of the vehicle to detect such situations and take appropriate corrective action. If the video image, broad-beamed radar sensors and steering wheel deflection sensor indicate a curve, speed can be maintained.
The front camera is also used to detect lane departure. If no turn indicator is set – an indication of intentional lane change – a rumble strip warning sounds, alerting the driver. The use of infused video again saves the cost of radar sensors – in this case replacing two sensors for lane departure warning and one dedicated sensor for adaptive cruise control.
These features enhance convenience and safety for the driver and are fully in line with DaimlerChrysler's vision of “Accident-free Driving”. In a later stage of the project, these same systems will be used for pre-crash detection. This has two benefits: Firstly, the driver can be warned, helping to avoid or mitigate the consequences of a collision. DaimlerChrysler engineers are currently examining what form this warning might take, as it is not clear whether a audible alarm will assist or merely startle the driver. Secondly, pre-crash detection allows the vehicle's computer to calculate optimum deployment of smart airbags in the event of a collision. Airbags will still be triggered by the collision detection sensor, but precalculation saves valuable microseconds, helping to minimize injury. The system may, however, trigger seatbelt pretensioning, as this is a no-risk, reversible action. Seat occupancy sensors permit the system to prevent unnecessary deployment of airbags for vacant seats.
A radar-based blind spot warning system. The side rear radar sensors assist the driver with lane changes. Older drivers, in particular, have problems with the head and neck movements required to carry out a shoulder check prior to changing lanes. This exacerbates the blind spot problem. When the driver sets the turn indicator, the radar checks the blind spot and illuminates a green, yellow or red LED in the side mirror, indicating whether it is safe to change lanes. If the vehicle starts to depart its current lane without the turn indicator being set, this is picked up by the next feature, the lane departure warning.
Voice-activated, multiple-function remote control key fob. Passwords or voice recognition increase security.
Center high-mounted stop light (CHMSL) that converts to a rear message center.
A power liftgate system similar to that found in the DaimlerChrysler minivans.
Integrated heart defibrillator. When the defibrillator is removed from the vehicle and connected to a patient, the Concierge will automatically initiate a cellular phone call to a medical emergency service to notify them of the vehicle's position via GPS and the condition of the patient.
Intelligent door hinges that increase the number of door check positions.
Capless fuel refilling. A self-sealing opening behind the fuel door receives the pump nozzle.
An Automatic tire inflation and pressure maintenance system, called AutoPump. AutoPump continuously maintains tire pressure to the proper level, ensuring optimal inflation under different driving conditions and environments. The self-contained device is the size of a hockey puck, is mounted under the centrally located wheel ornament and is powered by the rotation of the wheel. A small tube connects the pump directly into the wheel rim to provide a direct airway into the tire.
12-Volt belt-driven Stop/Re-Starter system for improved fuel efficiency and reduced emissions without compromising vehicle performance.