Cruise control on any car

[silenus]

I see not much compared with any reaction time of the microcontroller ...

A speed regulation on a car it's a slow process.
It was in the speed parameter which is desired reguler, and then if the car is over, the system should release the accelerator, and the car is below, we must accelerate. Any micro controller can perfectly manage this automatism, even if the speed is 200km / h ...

I'm not quite agree with you on tps reaction while μc a drive or a adc and if the outside event is too fast (speed = number of laps, and the set of μc "too slow" it is in the cabbage! I remind you that a real process tps does not mean quick process but a process that reacts based on external events that are reported to him. So I misspoke, the refresh rate entries μc important thing that I called wrong reaction tps. I agree that a μc can control very quickly if you give him in the set. I think the set was too slow to regulate 200 km / h.

Above this, we can then add more or less intelligence.
Indeed, if one is 1km / h below the set point, it will not accelerate thoroughly, we must accelerate a bit.
If it is below the setpoint 10km / h, it can accelerate harder to reach more quickly the setpoint.

That's what is done, but we always come back to the same pb, the number of turns had to be misinterpreted ... but I'm as perplexed as you about the fact that they did not consider that there would be stupid to test the thing at speeds more than prohibited.

It's a project that I often wanted to do on my car, because I often do long journeys> 1000km, and that would allow my leg to rest! To relieve the right leg, I sometimes use the left ...

As actuator, the kit you talk using an electric bailer, this is actually a kind of actuator. This is exactly what is needed. Only one electric motor can not do the trick.
It takes a servo motor, such as those used in model making, but imperatively necessary that the motor gearing is a worm. Otherwise, the return of spring to the neutral throttle accelerator to permanently force the engine of the booster, or of premature wear.

A+
Cyril

I was thinking of an engine because I also have a cable on my car and it's pretty hard to shoot, you probably have a good reason why it's better.

his resentment
@+
Silenus

[nlc]

heuuu, what I wanted to say is that the "concern" would have been manufacturer, Renault, etc ... has nothing to do with a problem to set 200km / h.
Must not underestimate the engineers who have worked on it, they had to make sure that the maximum speed of the car, it does not miss impulses on the speed sensor input;)

Especially since there's already a calculation of the speed relative to the sensor in the car's computer, since the counter dashboard is electronic (and I guess it showed 200 well;) )

For me this defect of this story is rubbish. It's just that people do not read the instructions ...
Or what is the excuse can to not admit he rolled willingly has 200km / h)

But hey we move a little away from the subject;)

[Former Oceano]

How to explain the reports in the US where we see years of crazy cars on highways that are unable to be stopped by drivers? Sometimes the police use their cars to make them slow down.

It was a mixture of electronic and computer in an environment that is quite aggressive. In any bugs in any misinterpretation of a sensor and one gets strange reactions of the car.

An example, my car had Merte a sensor indicating a non-zero speed off. The doors lock, in their own and the ABS showed an error. Changing the sensor and everything works. Take the same sensor and faisont transmit a speed below the set speed. The car will start to roll in background ...

FYI, to prevent Computer problems on the space shuttle, they 3 computers and each is programmed in a different language to avoid an error due to a misinterpretation of an issue of language program.

In short, personal I will avoid any system that drives the car in my place. If my leg hurts, I stop, I breathe, I drink a coffee and when I'm fit again, I'm leaving ...

[muzo_31]

Happy that this subject interests you;)

In the debate concerning Renault, I would go for a bug in their software. I heard stories from a friend who works on Calculos a competitive product: pre-sale testing is not done properly out the model in time.

As a high temperature test, we will go to Marseille. Cold and altitude, they mount mont ventou and pam! certified OK.

Renault for the regulator, they have to test 90, 130 to, and perhaps that was bazard improper operation for speeds + Raised!
as the prob was duplicated on several cars, I do not think of a joke. too much mediation, yes.
but we never heard of who had the scenic DCI calculo which accelerated as a strong slowed in gaining altitude a friend was warm with that! the garage they re-flashed and the problem disappeared. No apology or anything, they did not even change his brake pads and it had to pay an intervention on the computer (they are too strong right?)

Getting back to my original subject, I inquired as famous bailer and uses a motor depression as energy source to pull on the cable of accelerator. I therefore can not ride it because I do not have such energy I have an all hydraulic diesel citro. no vacuum pump at the bottom of the alternator ...

As motor, I had also thought about modelisme servo (I make the plane) but with such efforts we slap on the very rare and dear ranges. I made couple of steps: it takes me about 1.3kg to keep the injection pump lever position after a 9cm lever. The stroke of the cable is 5cm.

The engines of the disabled are true servos? or cylinders has depression as those that I have seen?

[Jean-Francois]

I discovered yesterday in a gadget shop for auto there is a kit to install a cruise control on any model. Across the Atlantic, they call it the "cruise control" and I find it nice to have and especially what would be an effective tool to reduce slightly our highway conso ...

The kit seems composed of a kind of electronic box, some buttons and sensors, and a bailer which releases a bicycle brake cable for controlling the pump handle existing injection or a gas throttle control (diesel or next gasoline). The price a little elevé: 400EUR asked, 250EUR for single rooms.

Considering the price, I feel able to do the electronic controller that manages this function. Plus the interest to be able to customize the behavior.
Where I blocks is the actuator: the famous bailer that pulls the cable of accelerator in place of the foot. It takes a pretty hefty stuff, rather fast, controllable by electricity. ...

You have any ideas ? Did we perhaps nice to recover parts on very recent cars in the breaks?

It's been a while that the idea stuck in my head, and now it is commercially available, I think it is not so finally con ...

I remember that in auto plus it had tested full in the 90 years it was 1000-1500Ff it consisted of a control box, a servo motor for throttle control, and a sensor speed to install on the meter cable and a tuning control for speed ...... (and when i think i demolished a r30TX with a normalur .grrr)

veiled voilou

[gegyx]

Most cars in America have this equipment since the 90 years, it is sutout on autos automatic transmissions

During a trip organized by the university, in August 1973, in the USA, I discovered this system of regulation with speed threshold, which already existed on a lot of cars.
Drivers were sometimes seen on highways with both feet on the front board, right behind the windshield, and left through the window ...
Gegyx

[Jean-Francois]

Drivers were sometimes seen on highways with both feet on the front board, right behind the windshield, and left through the window ...
Gegyx

a bit like this

veiled voilou

[Other]

Hello,
You are sometimes changing in your reflections, it seems to me that this summer in a post you speak about Cruse control
and adverse opinions in me blies, and today you are interesssé? I remember talking about the benefits and drawback of this system,
Do not think to use this system at high speed over .Either 180kmh or a low-speed transmission 40kmh spends his time shifting, in winter road icing is better not Inrush patent, or when you is too tired in night driving, it + air conditioning and a small chamber music, a straight highway and you wake you in a ditch.
I have this system on all my vehicles, I only use on long trips, you is on not to exceed the speed limits, if several vehicles are driven with this system runs well in traffic with good space between the vehicle.
and this gives moims cramps in the feet

If I had to choose an option it is rather efficient heating and defrosting that I would turn, it is the fault of your vehicle here, they are too tight and releases too much moisture inside, carpet that keep the water or whatever, the side windows
remain fogged, Rear Window Defrost insufisance.

Andre

[MichelM]

Hello
I also like the cruise control (the "tempomat" at Mercedes) it's resting on long drive especially when the radar is growing ... As Andrew I had a 300TD 80 years series 123, and now an 124 series (from 92), in auto box, it's also quite relaxing. For André: the regulator of the 123 began to age badly, he picked up at times cold, or was a little brutal, I thought condensers, electronics, with age and temperature had aged ... On the 124 it is softer and pleasant although apparently very similar.
For the latest regulators incorporated into new cars, I'm pretty wary with digital electronics, the bug is not far away and often difficult to reproduce. I work with colleagues who perform aircraft qualifications that are now digital and still found undesirable operations that manufacturers guarantee their products. And these devices are of a much higher price for what's in cars or self itself. It is true that these are not the same quantities manufactured ... But in all assessments we make about the operation of devices, the most reliable are either electromechanical (which 50 years!) Or the analog electronics with quality components, sorted, (so no electrolytic capacitors, except power).
Digital is a lot of apparent failures, because not reproducible ... And especially obsolete hardware very quickly and components untouchable! While we can still troubleshoot the electronics of the 60 / 70 / 80 years ...
Michel

[nonoLeRobot]

For muzo,

engines disabled servos are true? or cylinders has depression as those that I have seen?

It is a large electric motor diameter dison 10 30 cm length! with a reducer, and a position detector (finally it comes to the servo principle) but it's much bigger.