Audi A1 e-tron

H Audi παρότι δεν θα βγάλει στην αγορά το A1 e-tron, ανακοίνωσε πως το αναβάθμισε με έναν δυνατότερο ηλεκτροκινητήρα ο οποίος αποδίδει πλέον 115 άλογα με 300 Nm ροπής, αύξηση 13 ίππων με 60 Nm ροπής. Πλέον τα 0-100 χλμ/ώρα τα κάνει σε 9,8 δευτερόλεπτα με την τελική ταχύτητα να περιορίζεται ηλεκτρονικά στα 130 χλμ/ώρα.

Ο ηλεκτροκινητήρας τροφοδοτείται από μια μπαταρία ιόντων-λιθίου 13,3 kWh οι οποίες του δίνουν αυτονομία 50 χλμ. Επίσης διαθέτει και ένα μικρό περιστροφικό κινητήρα εσωτερικής καύσης 254cc (τύπου Wankel) ο οποίος αποδίδει 34 άλογα και μπορεί να φορτίσει τις μπαταρίες σε περίπτωση που χρειαστεί.

Ο μικρός Wankel κινητήρας είναι τοποθετημένος κάτω από τον χώρο των αποσκευών ζυγίζει 70 κιλά και διαθέτει ντεπόζιτο 12 λίτρων. Η Audi ισχυρίζεται ότι το αυτοκίνητο διαθέτει ένα έξυπνο σύστημα “επέκτασης της αυτονομίας” το οποίο συνεργάζεται με το GPS του αυτοκινήτου. Παραδείγματος χάρη, εάν ο οδηγός βάλει στο GPS την διαδρομή που θα ακολουθήσει, το σύστημα υπολογίζει αυτόματα τον ποιο αποδοτικό χρόνο που θα τεθεί σε λειτουργία ο κινητήρας Wankel ώστε να να καταναλώσει όσο γίνεται λιγότερο καύσιμο. Το σύστημα αυτό μπορεί να τεθεί εκτός λειτουργίας με το πάτημα ενός κουμπιού που βρίσκεται πάνω στον επιλογέα των ταχυτήτων.

Το συνολικό βάρος του αυτοκινήτου αγγίζει τα 1.190 κιλά με την συνολική αυτονομία του αυτοκινήτου να ανέρχεται στα 250 χλμ. Οι εκπομπές CO2 του είναι μόλις 45 γρ/χλμ, έχοντας μέση κατανάλωση 1,9 λίτρα/100 χλμ.

Το αυτοκίνητο διαθέτει επίσης ηλεκτρομηχανικό σύστημα διεύθυνσης καθώς και σύστημα ανάκτησης ενέργειας κατά το φρενάρισμα. Η Audi το έχει εξοπλίσει με αναβαθμισμένο ESP και νέο σύστημα ανάκτησης ενέργειας με πέντε διαφορετικά επίπεδα λειτουργίας.

Η Audi θα κατασκευάσει 80 αυτοκίνητα τα οποία θα καλύψουν κοντά το 1 εκατ. χλμ, έτσι ώστε η Γερμανική εταιρία να το αξιολογήσει σε πραγματικές συνθήκες

[Πηγή: Audi]

Δελτίο Τύπου

The Audi A1 e-tron in “Electromobility Showcase” projects

  • 80 cars in six projects in three German states
  • Audi demonstrates competence in urban mobility
  • Updated drive system with more power and torque

Audi and the A1 e-tron are participating in the German federal government’s Electromobility Showcase initiative. To explore the potential of the new drive system, the brand with the four rings has deployed 80 cars in six separate projects. A specialist for urban centers, the electric-powered compact model also includes a range extender for additional range.

Compact, agile, extremely economical and with zero local emissions, the Audi A1 e-tron represents a new, smart form of urban mobility. In 2012, early models covered more than 50,000 kilometers (31,068.56 miles) in an Audi fleet trial in Munich. Valuable insights into charging and driving behavior were gained, and the participants in the trial were very satisfied.

The next generation of the Audi A1 e-tron is more powerful. The electric motor drives the front wheels via a single-speed gearbox and produces 85 kW of peak power and maximum torque of 300 Nm (221.27 lb-ft). The sprint from zero to 100 km/h (62.14 mph) only takes 9.8 seconds; its acceleration ends at a governed top speed of 130 km/h (80.78 mph). The developers have further improved the electronic stabilization control (ESC) and the selection of the five recuperation levels.

The T-shaped lithium-ion battery in the Audi A1 e-tron stores 13.3 kWh of energy for an electric range of roughly 50 km (31.07 miles). It can be fully recharged in around three hours on a 220 V household outlet. An extremely compact and lightweight single-disc rotary engine in the rear of the car extends the range to a total of 250 km (155.34 miles). The range extender, which has a chamber capacity of 354 cc and produces 25 kW (34 hp), drives a generator to recharge the battery. It is not mechanically linked to the front wheels.

Audi is deploying 80 A1 e-tron models in the Electromobility Showcase. In the six individual projects in which Audi is taking part, the participants will probably drive around one million kilometers (621,371.19 miles). In each instance the brand operates with local partners.

Audi is launching the “Intelligent Charging” project with five cars at its Ingolstadt headquarters in June. The focus here is on a system for controlling the charging and communication infrastructure. 13 intelligent charging stations – five in the participants’ garages, four in Audi parking garages and two charging stations downtown operated by Audi’s project partner Stadtwerke Ingolstadt – communicate with the trial participants’ smartphones. Participants can look up and reserve the closest station or remotely check the battery’s charge.

In the first phase of the “E-NUE” project in Nuremberg, Audi is providing N-ERGIE Aktiengesellschaft with five Audi A1 e-tron models for both business and personal use by its employees. Audi will provide one Audi e-tron to each of five additional companies in the Nuremberg area in a second project phase. These cars are also intended for both business and personal use.

The “Commuting and Charging” project in Berlin with 25 of the compact electric cars is structured similarly. The users are commuters living or working near Potsdamer Platz. Audi offers them a customized service concept. The activities in Berlin and Nuremberg are starting this summer.

Audi is addressing a special group of customers with the “E-Plan” project about to start in Munich. The company is loaning an A1 e-tron to 15 private participants residing in the pre-WW II neighborhood of Schwabing, where they have to park on the street and are thus dependent on the public charging infrastructure.

The “NEoS Showcase” project in Stuttgart, which recently got underway, follows on Audi’s 2012 fleet trials in Munich. Fifteen private households and five companies have each first received an A1 Sportback 1.4 TFSI and then received an A1 e-tron. Accompanied by market research activities, the direct comparison is intended to provide information about user behavior and about charging at private and public stations.

“sun2car@GAP” is the name of another project launching in Garmisch-Partenkirchen in late summer to study how the Audi A1 e-tron can work together with private power generation: The homes of the participants are equipped with photovoltaic systems. The wall box for the car, which is installed in the garage, adjusts the charging process according to the amount of sunshine, the time and the priority of the users. A further aspect is the simulative incorporation of used car batteries as stationary storage. Audi will be deploying ten of the A1 e-tron in “sun2car@GAP”.

In April 2012, the German federal government chose four regions in Germany as “electromobility showcases” and subsidizes alternative drive system research and development in accordance with a resolution of the German Bundestag. The federal government is providing a total of €180 million in funding for the showcase program. The large-scale regional demonstration and trial programs will test the interface between electromobility and the energy system, vehicle and transportation system.