MANDO Corporation

South Korea

MANDO Corporation

South Korea
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Patent
Mando Corporation | Date: 2017-01-25

Disclosed is an electronic disc brake. The electronic disc brake includes a disc configured to rotate with vehicle wheels, a caliper housing configured to operate pad plates installed at both sides of the disc, and an actuator having a piston provided inside the caliper housing to come into close contact with the disc, a spindle rotatably installed at the caliper housing to reciprocate the piston, an electric motor configured to rotate the spindle, and a decelerator configured to transmit a rotational force of the electric motor to the spindle, in which the decelerator includes a power connection unit directly connected to the electric motor, and first and second deceleration gear units sequentially connected to the spindle, and the first deceleration gear unit includes a worm gear.


Wheel pressure estimation apparatus and method are disclosed. A wheel pressure estimation apparatus includes: an inputter configured to receive a brake signal output from an electronically controlled brake apparatus and receive a brake pedal signal detected from a detector and a pressure value of a master cylinder, an estimator configured to estimate a discharge flow rate of a motor pump generated by a suctioning operation of the motor pump to estimate a wheel pressure when the brake signal is received, a determiner configured to determine whether a driver intends to brake according to whether the brake pedal signal is input and a controller configured to control the estimator to estimate the wheel pressure again using discharge flow rate model information in which the pressure value of the master cylinder is applied to the discharge flow rate of the estimated motor pump, when the driver intends to brake.


The present embodiments relate to an electronic power steering device, and relates to a technology for reducing a torque rise resulting from an increase in frictional force in a low-temperature situation of the electronic power steering device. According to the present embodiments, a viscous friction compensation current is calculated using a viscous gain, which has been determined according to a damping coefficient estimated from a temperature sensed in a low-temperature situation of the electronic power steering device, and a steering angular velocity, a Coulomb friction compensation current is calculated using the sensed temperature and the mount of accumulated steering angles, and the calculated viscous friction compensation current and the Coulomb friction compensation current are added to the motor driving current and then supplied such that the driver can have the same feeling of driving, even in the low-temperature situation, as that in the room-temperature situation.


Patent
Mando Corporation | Date: 2017-01-11

The present disclosure relates to device including at least: an automatic steering mode control unit that controls a steering motor torque, corresponding to automatic steering torque information or automatic steering angle information for running of a vehicle in an automatic steering mode, to be generated when the automatic steering torque information or the automatic steering angle information is received; an automatic steering mode release determination unit that determines whether to release the automatic steering mode when a steering torque or steering angle information generated according to a steering wheel operation of a driver is detected; and an automatic steering mode release unit that determines a release time of the steering motor torque applied in the automatic steering mode, by using the steering angle information generated according to the steering wheel operation of the driver when it is determined to release the automatic steering mode.


Disclosed is a cooperative driving method including transmitting information on a merging request to a lead vehicle which is singly driving or cooperatively driving, receiving information indicating whether merging is possible from the lead vehicle which has determined whether the merging is possible, a merging step in which, when information indicating that the merging is possible is received, the follow vehicle merges, transmitting information indicating that the merging is being performed to the lead vehicle, determining whether the merging of the follow vehicle has been completed based on a longitudinal distance from a first preceding vehicle or a transverse distance from a lane line, and a merging completion step of, when it is determined that the merging has been completed, releasing the transmission of the information indicating that the merging is being performed.


The present disclosure relates to a damping force variable valve assembly, which is installed in a damping force variable shock absorber for adjustment of a damping force of the shock absorber, includes at least: a solenoid that generates a magnetic force when an electric current is supplied thereto; a plunger configured to be moved by the magnetic force of the solenoid; a spool that is moved together with the plunger and change a damping force between a hard mode and a soft mode by changing an inner passage of the damping force variable valve assembly; and a spool position determination member that locates the spool at a fail position, which does not correspond to the hard mode and the soft mode, so as to maintain the damping force of the shock absorber at a medium level between the hard mode and the soft mode upon fail of the solenoid.


Patent
Mando Corporation | Date: 2017-01-25

An electric brake system includes a hydraulic pressure supply device configured to generate hydraulic pressure using a piston which is operated by an electrical signal that is output corresponding to a displacement of a brake pedal, and including a first pressure chamber and a second pressure chamber, a first hydraulic flow path configured to communicate with the first pressure chamber, a second hydraulic flow path configured to communicate with the first pressure chamber, a third hydraulic flow path configured to communicate with the second pressure chamber, a fourth hydraulic flow path branching from the third hydraulic flow path and connected to the first hydraulic flow path, a fifth hydraulic flow path branching from the third hydraulic flow path and connected to the second hydraulic flow path.


Patent
Mando Corporation | Date: 2017-02-01

Electronic brake system is disclosed. An electronic brake system includes, a pressure sensor including a first pressure sensor configured to measure a hydraulic pressure of the accumulator, a second pressure sensor configured to measure a hydraulic pressure of the first hydraulic circuit, and a third pressure sensor configured to measure a hydraulic pressure of the second hydraulic circuit, a driver including one or more apply valves and release valves configured to control the hydraulic pressures of the first hydraulic circuit and the second hydraulic circuit, a determiner configured to determine that at least one of the first hydraulic circuit and the second hydraulic circuit has failed when an absolute value of a slope of the pressure measured by the first pressure sensor is greater than a preset first threshold value and the pressure measured by the first pressure sensor is less than a preset second threshold value and a controller configured to close apply valves of the first hydraulic circuit and the second hydraulic circuit when the failure has been determined, determine that a leak has occurred in one of the first and second hydraulic circuits having an amount of pressure change greater than that of the other hydraulic circuit measured on the basis of the second pressure sensor and the third pressure sensor, and control braking using only the hydraulic circuit operating normally.


Patent
Mando Corporation | Date: 2017-01-16

Disclosed is a brake system. The brake system includes a pulsation attenuation device configured to attenuate pressure pulsation of brake oil discharged from a pump, wherein the pulsation attenuation device includes a first damping device, wherein the first damping device includes: a first damping member inserted into a first bore in communication with an in-port through which brake oil is introduced and an out-port through which brake oil is discharged and having a hollow formed therein; a second damping member inserted into the hollow to form a damping space between the second damping member and an inner circumferential surface of the first damping member; and a sealing member coupled to the first damping member and configured to seal the first bore, wherein the damping space is formed by a plurality of grooves formed in the hollow.


Patent
Mando Corporation | Date: 2017-04-26

Disclosed herein are a bicycle and a control method of the same. The bicycle includes an electromagnet (70) installed in a pedal body (60) rotatably coupled to a pedal shaft and configured to generate a magnetic force when power is supplied thereto, a switching unit (100) configured to switch on or off the power supplied to the electromagnet (70), and an electronic control unit (40) configured to turn on or off the switching unit (100).

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