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

"The first thing that's wrong with being a science-fiction writer today is that the present has caught up with the future and surpassed it."
- Peter Watts

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
Calling Google's RoboTaxi
Hyperloop Transport Proposed By Tesla's Elon Musk
Evacuated Tube Transport Idea Is 200 Years Old This Year!
myTaxi iPhone App May Transform Taxi Business

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

Survival Seed Vault Low Cost Life Bank
'They existed in the Life Bank, as did virtually every plant...'

PoseiDrone Tentacled Undersea Robot Like HG Wells'
'Its motion was so swift, complex, and perfect that at first I did not see it as a machine...'

Man-Made Space Leaf Creates Oxygen From Water And Light
'What better purifying machine is there than... grass?'

Robot With Broken Leg Learns To Walk Again
Robots that learn to walk again are now on the march.

World's First Android Newscaster (Video)
'The autonomic TV interviewer, camera in its hand, blocked his path.'

Japan Invites Robot Athletes To Gather For 2020 Olympics
It's time we started to get rid of that distinction between metal and flesh, and IC and neuron, don't you think?

CV Dazzle Anti-Surveillance Make-Up
Let's hear it for the vague blur!

LG Display's 18 Inch Flexible OLED Panel Is Awesomely Cool
'...a wide sheet of clear material suddenly flared with light and swirling color.'

Tiniest Microphone Inspired By Fly
'Transmitting to its manipulator, far away now, all that it heard through its ear microphones...'

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.