wats the EPS light mean?
Registered User
Joined: Oct 2000
Posts: 389
Likes: 0
From: Boca Raton
Earnings Per Share...
= (Net Income-Dividends on Preferred Stock)/Average Outstanding Shares
Net income for a specific period divided by the number of outstanding shares. Companies usually use a weighted average number of shares outstanding over reporting term.
What it is on the S2000 is program that lets you know if Honda Corporate is currently making money. When the light goes on, it's time to sell. Rumor has it that it is a Beta system, so you can't really trust its accuracy.
= (Net Income-Dividends on Preferred Stock)/Average Outstanding Shares
Net income for a specific period divided by the number of outstanding shares. Companies usually use a weighted average number of shares outstanding over reporting term.
What it is on the S2000 is program that lets you know if Honda Corporate is currently making money. When the light goes on, it's time to sell. Rumor has it that it is a Beta system, so you can't really trust its accuracy.
Registered User
Joined: Oct 2000
Posts: 55
Likes: 0
Actually isn't it Electric Power Steering and not Electronic. It is simply normal steering system that uses an electic pump instead of hydrolic (sp?) pump to provide steering assist.
Not the same as fly by wire.
jake
Not the same as fly by wire.
jake
Trending Topics
Registered User
Joined: Apr 2001
Posts: 8,601
Likes: 1
From: La Habra
And electric power steering (EPS) means: less weight, no fluid plumbing, no fluid to dispose of, better gas mileage, and easier to calibrate for and speed-sensitive boost.
It also is a relatively immature technology and a little buggy (I know Mercedes and BMW both used "e-gas" control for more years, and more recently Porsche). Not too many cars sold in US have EPS. More are in production overseas (probably product liability issues). It is one thing for power assist to cut out (say when the electric motor overheats) but it is a much bigger evil for it to apply force to steer you into a tree.
Our S2000 system seems a little more stable than the other systems I am familiar with. System weaknesses are usually life of the steering torque sensor and the electric motor itself. Looking at the service manual it looks like ours in under-hood (as opposed to other in-cabin systems) and that means higher temperature exposure along with salt and other nasties. The reason for under-hood is to allow a larger electric motor and mask noises the sensor or motor make.
It also is a relatively immature technology and a little buggy (I know Mercedes and BMW both used "e-gas" control for more years, and more recently Porsche). Not too many cars sold in US have EPS. More are in production overseas (probably product liability issues). It is one thing for power assist to cut out (say when the electric motor overheats) but it is a much bigger evil for it to apply force to steer you into a tree.
Our S2000 system seems a little more stable than the other systems I am familiar with. System weaknesses are usually life of the steering torque sensor and the electric motor itself. Looking at the service manual it looks like ours in under-hood (as opposed to other in-cabin systems) and that means higher temperature exposure along with salt and other nasties. The reason for under-hood is to allow a larger electric motor and mask noises the sensor or motor make.
Registered User
Joined: Jan 2001
Posts: 417
Likes: 0
From: Austin
Actually you can use force-feedback to overcome the lack of direct feedback in a steer-by wire. It isn't quite the same as direct feedback, but it's better than nothing (all supersonic jets "simulate" control surface feedback in this way, as they have irreversable control systems).
IMO, the biggest problem with steer-by-wire is that there is no backup if the power fails. No power to the system = no steering. At least with a system like in our cars, when the steering assist goes out, you can still steer, although it's heavy as heck (ya gotta steer + override the assist motors). Try turning the steering wheel with the engine off when parked sometime. You can, but it takes a bit of effort
IMO, the biggest problem with steer-by-wire is that there is no backup if the power fails. No power to the system = no steering. At least with a system like in our cars, when the steering assist goes out, you can still steer, although it's heavy as heck (ya gotta steer + override the assist motors). Try turning the steering wheel with the engine off when parked sometime. You can, but it takes a bit of effort
Registered User
Joined: Oct 2000
Posts: 3,653
Likes: 0
From: Honolulu
The some of the earlier info on the EPS is incorrect. There is no hydrolic fluid involved in our system. I'm no mechanic, but the general principal involved an electric coil concentric with the steering rack. As voltage is varied, the amount of assist is changed.
This setup is used on the NSX and has been one of the most reliable parts of the whole car. Our system is a vairation on the NSX rack and this is the reason it has proven so reliable.
FWIW, the electric pump replacing the belt driven pump was used in my previous '93 MR-2 and was very reliable as well though I did have is crap out at an autocross once and I needed a new "thingy" that was a $100 or so.
This setup is used on the NSX and has been one of the most reliable parts of the whole car. Our system is a vairation on the NSX rack and this is the reason it has proven so reliable.
FWIW, the electric pump replacing the belt driven pump was used in my previous '93 MR-2 and was very reliable as well though I did have is crap out at an autocross once and I needed a new "thingy" that was a $100 or so.
Thread
Thread Starter
Forum
Replies
Last Post