Latest By
Category:


Armor
Artificial Intelligence
Biology
Clothing
Communication
Computers
Culture
Data Storage
Displays
Engineering
Entertainment
Food
Input Devices
Lifestyle
Living Space
Manufacturing
Material
Media
Medical
Miscellaneous
Robotics
Security
Space Tech
Spacecraft
Surveillance
Transportation
Travel
Vehicle
Virtual Person
Warfare
Weapon
Work

"I forged a concept which is relatively simple and possibly unique in theology, and that is, the irrational is the primordial stratum of the universe."
- Philip K. Dick

Vehicle Energy Reclamation  
  Reclaiming the energy gained by climbing a hill on the way back down.  

This is a key feature of the new Toyota Prius hybrid vehicles, which use regenerative braking.

On reaching the top of a long and steep hill, if we do not wish to coast, we convert the motors into dynamos, while running at full speed, and so change the kinetic energy of the descent into potential in our batteries. This twentieth-century stage-coaching is one of the delights to which we are heirs, though horses are still used by those that prefer them.
From A Journey In Other Worlds, by John Jacob Astor IV.
Published by Unknown in 1894
Additional resources -

When you are going too fast and want to slow down (either to stop or when coming down a long grade), the kinetic energy of the car is used to charge the battery.

It works exactly as described more than a century ago:

Toyota engineers asked themselves, "Why not recapture some of the energy lost while coasting, slowing down or coming to a stop?" Well, that's exactly what Prius' regenerative braking system does. When the driver does any one of these three things, the system turns the motor into a generator. The energy of the wheels produces electricity, which is then stored in the batteries.
(From Toyota Prius Regenerative Braking)

So was John Jacob Astor the first person to write about this idea? The earliest reference I can find to it is something that was called dynamic brakes used on electric trolley cars in the early 20th century:

The driverís control handle had a position that cut power to the traction motors and supplied a small, finely controlled excitation current to the motorsí field windings. This turned the motor into a generator that was driven by the motion of the car. Increasing the magnetic field current increased the generating load, which slowed the car, and the current being generated was routed to a set of huge resistors on top of the car. These resistors converted the current to heat, which was dissipated through cooling fins. By the 1920s, techniques had been developed for returning that current to the power grid, making it available to all the other cars in the system and so reducing the load on the streetcar systemís main generator by as much as 20 percent. Regenerative braking systems like this are still being used in cities around the world.
(From Regenerative Braking Charges Ahead)

Comment/Join this discussion ( 0 ) | RSS/XML | Blog This |

Additional resources:
  More Ideas and Technology from A Journey In Other Worlds
  More Ideas and Technology by John Jacob Astor IV
  Tech news articles related to A Journey In Other Worlds
  Tech news articles related to works by John Jacob Astor IV

Articles related to Transportation
Airbus E-Fan All-Electric Plane Now Ready
Self-Driving Truck Corridor From Manitoba To Mexico?
Rollkers Walking Skates
Fix Michigan Roads, Or Get Hovercars?

Want to Contribute an Item? It's easy:
Get the name of the item, a quote, the book's name and the author's name, and Add it here.

<Previous
Next>

Google
  Web TechNovelgy.com   

 

 

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

More News

Brainwaves As Biometric Identification
'The doors of Mr. Lars, Incorporated, shut, tuned as they were to his own cephalic pattern.'

What-If Machine Concocts Creative Premises
'Books were just a commodity that had to be produced, like jam or bootlaces.'

Underwater Balloon Gardens
'He puffed heavily as he angled around the bulbous lifezones...'

Storing 1 Zettabyte In 10 Grams
'It is theoretically possible to have a matrix in which each individual molecule has a meaning...'

Laser-Powered Spacecraft To Explore The Solar System
'Whoever launched it fired a laser cannon... for about forty-five years, so the intruder would have a beam to travel on...'

Skin Chair For That 'Sitting On A Fat Guy' Feeling
'The semi-sentient artifact glided to a position behind McKie...'

Pneumatic Micro-Tentacles Kidnapping Ants
'Long, flexible, glittering tentacles...'

Bee Narcs To Perform Drug 'Stings'
'Time for a replacement of both Behren and his dipterous insect...'

3D Printed Spherical Flying Machine
'Gold dots against blue, basketball-sized, twelve feet up....'

Airbus E-Fan All-Electric Plane Now Ready
I couldn't believe it, either.

More SF in the News

More Beyond Technovelgy

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.