As soon as the driver turns the wheel, Mazda's SkyActiv engine management system — which includes the GVC algorithms as part of what Mazda calls SkyActiv Vehicle Dynamics —
retards the ignition timing ever so slightly, engine torque (power) falls slightly, the car slows ever so slightly, and a small amount of weight transfers to the outside front wheel (such as the right front wheel if the steering wheel is turned to the left, as in the illustration above).
Additionally, a block - mounted acoustic detonation (knock) sensor «listens» to the engine, sending information about potentially damaging detonation to the PCM, which then incrementally
retards ignition timing to help prevent damage.
In relation to octane rating of fuel, the PCM
retards ignition timing as needed to forestall detonation.
That brake technology complements a CVT Belt Protection System, which automatically
retards ignition timing if the system detects engine operation at high rpm for more than two seconds while the rear wheels are motionless (i.e., if the belt is slipping) and warns the rider via a flashing belt warning lamp on the dash.
In order to circumvent this, Volkswagen came up with the concept of
retarding ignition timing at the crucial moment of the gear change, effectively mimicking the act of lifting off the throttle.
I can run 87 octane but the knock sensors will just
retard the ignition timing before I ever hear any knock.
A computer in the transmission talks to the engine's computer to
retard ignition timing for a split second in shifts to reduce engine torque and lessen the load on the transmission to make those shifts smoother and quieter.
Two engine block - mounted acoustic detonation / knock sensors «listen» to the engine, and based on this input, the ECU can
retard the ignition timing to prevent potentially damaging detonation.
An engine block - mounted acoustic detonation / knock sensor «listens» to the engine and, based on this input, the PCM can
retard the ignition timing to prevent potentially damaging detonation.
An engine block - mounted acoustic detonation / knock sensor «listens» to the engine, and based on this input, the ECU can
retard the ignition timing to prevent potentially damaging detonation.
Not exact matches
If detected they will attempt to correct the condition by instruction the
ignition system to delay (
retard) the spark
timing (when the actual spark occurs).
Most modern engines auto correct their
timing by advancing or
retarding ignition.
Have also replaced the PCM with another from an identical model but it still has
retarded ignition (zero)
timing at idle when warmed up.
Higher - than - normal vacuum at idle is a common clue to overly advanced
ignition timing, while low vacuum can indicate
retarded timing.
In all BMW knock - control strategies, each cylinder's combustion process is measured individually; if only one cylinder is tending to knock, only that cylinder will have its
ignition timing retarded.
In order to accomplish this, it often
times requires either advancing or
retarding the
ignition and...
In order to accomplish this, it often
times requires either advancing or
retarding the
ignition and fuel
timing in the motor to accommodate a particular condition.
If knock (detonation) is incipient, the ionic current will so indicate; a signal goes to the engine's electronic control system and
ignition timing is
retarded appropriately.
The transmission
retards the engine's
ignition timing for a moment during shifts.