Friday, 29 January 2016
M&M The Future to be showcased in auto expo 2016
Saturday, 23 January 2016
Amazing innovations in automobile industry till 2015
1. Google Driverless Cars
On the onset of winter break, on December 23, Google announced its first fully functionaldriverless car, which is ready for testing on public roads. Prior to this, the Internet giant developed various prototypes that lacked on different fundamental and functional aspects.
The latest prototype has all the important elements like headlights, steering and brakes. The company have also created a self-driving system with sensors and computers that can be fitted to SUVs like Lexus. This new technology will not only be a breakthrough in tough traffic congestion but sensing technology can also increase road safety. Countries such as the UK and US are working on laws to allow driverless cars.
2. Automated Manual Transmission (AMT)
In the 2014 Delhi Auto Expo, where more than 70 vehicles were launched, one that pundits hailed as the most important was Maruti Suzuki's Celerio, the first affordable mass segment gearless hatchback. Celerio comes with AMT (automate manual transmission) sourced from Magneti Marelli, component arm of Fiat. AMT is an electro-hydraulic mechanism for automating manual transmission, which derives from Formula 1.
It has a hydraulic system and an electronic system. The electronic transmission control unit helps in engaging and disengaging the clutch and gear through an electronic actuator. It also has a sports mode, which enables drivers to move to the manual shifting of gear to increase and decrease the gear ratios with plus and minus either through gear knob /joystick or the steering. In India, AMT is currently available in three cars — Celerio, Alto K10 and Tata Zest.
3. V2V Communications
In February, US National Highway Traffic Safety Administration announced that it will begin taking steps to enable vehicle-to-vehicle (V2V) communication technology for light vehicles. This technology would allow vehicles to "talk" to each other and ultimately avoid many crashes altogether by exchanging basic safety data, such as speed and position, ten times per second, to improve safety.
It uses 'ad hoc network', where every car is free to associate with any other car available in the network and share equal status. V2V, which is also known as VANET (vehicular ad hoc network), is a variation of MANET (mobile ad hoc network). Many automobile manufacturers including are BMW, Audi, Honda, General Motors, Volvo and Daimler working and developing this technology to improve safety, overcome blind spots and avoid accidents.
4. Pre-Collision Technology
Top carmakers such as Ford and Hyundai have developed a pre-collision assist and pedestrian detection technology. Besides helping the driver detect blind spots, this technology also alerts the driver when he/she is not paying attention on the road. And if the driver falls asleep and does not respond to the warning, then the system applies the brakes on its own. The driver assist system has two types of sensors.
One is millimetre-wave radar located inside the front grille, and the other is a monocular camera mounted on the upper, inside part of the windshield. Its collision mitigation braking system delivers an audio and visual warning when there is a risk of a head-on collision.
If the driver fails to react, the car will automatically begin breaking itself to prevent or reduce the severity of a crash. This technology will debut in 2015 with Ford Mondeo in Europe. Hyundai would introduce it in the new Genesis sedan.
5. Smart Cars After smartphones, we will soon have smart cars around. In June 2014, Google launched its 'Android Auto', a telematics software that can be connected to car dash board for infotainment. It also enables the driver to access GPS, maps, streaming music, weather, and a host of other applications. A slew of carmakers including Abarth, Acura, Alfa Romeo, Audi, Bentley, Chevrolet, Chrysler, Dodge, Fiat, Ford, Infiniti, Jeep, Kia, Maserati and Volvo will offer Android Auto in their cars
6. Start- Stop Technology Hero MotoCorp introduced its first bike with start-stop technology, Splendor iSmart, in March 2014.
The company calls it i3s technology which is also known as Idle Start and Stop System. i3s is a green technology that automatically shuts the engine when idling and turns it on, when needed, with a simple press of the clutch, giving more mileage in congested cities.
Saturday, 9 January 2016
Shape Optimization Leads to Improved Electric Motor
Engineers at Hanning Elektro-Werke in Germany have improved the efficiency of electric motors by using shape optimization, an algorithm also known as topology optimization.
In a paper published in the SIAM Journal on Scientific Computing, Ulrich Langer, Antoine Laurain, Houcine Meftahi and Kevin Sturm described a new mathematical method for obtaining peak performance from an electric motor.
Motors in general can be fairly complex machines, as anyone who’s ever looked under the hood to examine a modern internal combustion engine can tell you. Even for a relatively simple design, a motor has several moving parts that can be subject to energy loss through friction, noise and vibration. For electrical motors, such as those found in computers, washing machines and assembly tools, many of the same physics apply.
For Langer and his group, the key to designing a more efficient motor involves refining the mechanical rotation at the motor’s interior core to reduce or eliminate perturbations that contribute to efficiency losses. Echoing the sentiment of his colleagues, Langer stated, "A smoother rotation of the rotor can increase the energy efficiency of the motor and, at the same time, reduce unwanted side effects such as noise and vibrations."
To begin their redesign, the Hanning team identified a region within the core of an interior permanent magnet brushless electric motor. Within that design scope, the team began using the shape optimization computer algorithms they had developed to explore how different boundary geometries would affect the rotational mechanics of the motor.
After several design iterations driven by use of the algorithm, the researchers began to realize an improvement in motor efficiency that eventually reached 27 percent.
"By means of shape optimization methods, optimal motor geometries that could not be imagined beforehand can now be determined," said Langer.
Buoyed by their most recent shape optimization success, Langer and his group have plans to continue their work on increasing motor efficiency and refining their optimization algorithms to produce even better results. With this optimization methodology, who knows, one day we might have motors so efficient that they challenge preconceptions about what’s possible in power generation.

