Patent
Differential limitation control device for vehicle with driving wheel propulsion control device
TLDR
In this paper, a turning limit is made higher by controlling an increase or decrease in differential limiting force from the outside on the basis of detected signals of a turning direction and the rotary speed of right and left driving wheels, and prohibiting the function of a driving wheel propulsion control device.Abstract:
PURPOSE:To make higher a limit to turning radius by controlling an increase or a decrease in a differential limiting force from the outside on the basis of detected signals of a turning direction and the rotary speed of right and left driving wheels, and prohibiting the function of a driving wheel propulsion control device. CONSTITUTION:A control device 13 judges a turning direction on a steering angle 142. For example, when a vehicle turns to the left and a right wheel WR is faster than a left wheel WL, the device 13 judges a condition as in an initial turn and outputs a control current signal (i) to an electromagnetic proportion reducing valve 46 so as to reduce clutch pressure 'P' down to zero. After the intermediate time of turning and when the left wheel WL is faster than the right wheel WR, it is judged that an inner wheel spin is taking place and a driving force is being released from the left wheel WL, differential limiting torque 'T' is so increased or decreased as to make the slip ratio SR of the outer wheel WR agree to a predetermined slip ratio S0, and a work prohibiting signal (d0) is outputted to a traction control device 7 when said differential torque 'T' is being limited. According to the aforesaid constitution, a turning limit can be made higher.read more
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Patent
Differential control device
Mitsuyuki Ouchi,Kouichi Aono +1 more
TL;DR: In this paper, a differential control device for controlling the differential of a differential gear having a differential limiting mechanism includes a sensor for detecting a steering angle, a vehicle speed, a controller for receiving signals from the steering angle detecting sensor and vehicle speed detecting sensor.
Patent
Driving force control method and device for four-wheel drive vehicle
TL;DR: In this article, the authors proposed an agreeable control by exhibiting control values as the sum of the previous control variables and the present operated value wherein the control variables are periodically operated using detected signals for vehicle speeds, the magnitude of cornering, acceleration and the quantity of slip as parameters so as to be inputted into a driving force allocation means.
Patent
Driving force distribution controller for four-wheel drive vehicle
TL;DR: In this paper, the authors proposed a driving force distribution controller for a four-wheel drive vehicle allowing to improve acceleration property after finishing driving force control by estimating a timing of finishing brake force control in vehicular behavior control.
Patent
Differential limiting device for drive wheel
TL;DR: In this article, the authors proposed a differential limiting device of a drive wheel that always generates adequate differential restriction torque without impairing turning property of a vehicle, where a device is provided with a restriction torque adjusting clutch built in a differential gear 90 to adjust differential restrict torque, wheel speed difference arithmetic part for calculating an absolute value of a peripheral speed difference of drive wheels 64, 65 based on detection signals from a pair of wheel speed sensors for detecting speeds of the drive wheels.
Patent
Failure detection system for lateral acceleration sensor
TL;DR: In this article, a failure detection system for a lateral acceleration sensor free from false decision is presented, which is configured to perform failure decision control which decides that the lateral G sensor 45 is faulty when the difference between an actual lateral G acting on a four wheel vehicle detected by the lateralG sensor 45 attached to the four-wheel vehicle 1 and an estimated lateral G which is estimated from predetermined parameters indicating the conditions of the vehicle is predetermined value or more.