| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 303152000 | Regenerative brakes | 12 |
| 20080315681 | Energy Recovery in Hybrid Vehicles Having a Conventional Hydraulic or Pneumatic Brake System - A device and a method for recovering energy during a braking operation of a hybrid vehicle which includes an electric machine in addition to an internal combustion engine, as well as a hydraulic or pneumatic brake system which is operated by a foot brake pedal). The recovery device includes a pedal position transducer which detects at least an actuation of the foot brake pedal in an initial range, and an electronic system which evaluates the signal of the pedal position transducer and activates the electric machine accordingly in generator mode when the driver actuates the foot brake pedal in the initial range. | 12-25-2008 |
| 20090108672 | COMBINATION REGENERATIVE AND FRICTION BRAKING SYSTEM FOR AUTOMOTIVE VEHICLE - A combination regenerative and friction braking system for an automotive vehicle includes an active booster master cylinder and a number of wheel cylinders connected to the master cylinder. A brake control unit is connected with brake pipes extending from the master cylinder to the wheel cylinders. At least one pressure reducing valve is positioned in one of the brake pipes so as to allow the active booster master cylinder to actuate selective ones of the wheel cylinders during regenerative braking without activating wheel cylinders servicing wheels which are being braked regeneratively. | 04-30-2009 |
| 20090236906 | Hydraulic Regenerative Braking System For A Vehicle - A hydraulic regenerative braking system for a vehicle is provided. The system includes two hydraulic machines, each of which is disposed proximate a corresponding vehicle wheel. A transformer is in communication with each of the hydraulic machines, and with a pair of accumulators. Each of the hydraulic machines is operable as a pump, pumping fluid to at least one of the accumulators when the vehicle is braking. Each of the hydraulic machines is also operable as a motor, receiving pressurized fluid and transferring torque to the vehicle wheels. The transformer is operable to vary the pressure of the fluid received by the hydraulic machines. | 09-24-2009 |
| 20090256417 | Brake device - An object of the present invention is to provide a brake device in which brake feeling can be improved. In response to depression of a brake pedal | 10-15-2009 |
| 20100102622 | BRAKING SYSTEM FOR A VEHICLE TO CONTROL A REGENERATIVE BRAKING - An embodiment of a braking system for a vehicle to control a regenerative braking; the braking system is provided with: a plurality of hydraulically operated mechanical brakes; a hydraulic braking circuit connected to the mechanical brakes; a brake pump to raise pressure in the hydraulic braking circuit; a brake pedal mobile between a resting position and a maximal braking position; a connecting cap, which mechanically connects the brake pedal to the brake pump, and is divided into two reciprocally independent parts; an elastic system which tends to push the brake pedal towards the resting position; a position sensor to read the position of a part of the connecting cap integral to the brake pedal; and a pilot system to pilot an energy recovery system for effecting a regenerative braking and uses the position of the part of the connecting cap integral to the brake pedal provided by the position sensor. | 04-29-2010 |
| 20100219681 | HYBRID BRAKING SYSTEM - A hybrid braking system that operates in conjunction with a foundation braking system, whether an air, hydraulic, electric, mechanical or electric braking system. Recovered energy is returned to the axle wheels in a controlled manner while the vehicle is in motion and certain criteria are met so as to compensate for aerodynamic drag and rolling resistance for instance but not at a rate to accelerate or launch a vehicle. | 09-02-2010 |
| 20110049974 | METHODS AND SYSTEMS FOR BRAKING DIFFERENT AXLES OF A VEHICLE USING A DECELERATION VALUE - A method for controlling braking of a vehicle having a first axle and a second axle includes the steps of obtaining a deceleration value pertaining to an input from a driver of the vehicle, braking the first axle with a first pressure, braking the second axle with a second pressure that is substantially equal to the first pressure if the deceleration value has not exceeded a predetermined threshold, and braking the second axle with a third pressure that is greater than the first pressure if the deceleration value has exceeded the predetermined threshold. | 03-03-2011 |
| 20110221265 | METHOD FOR OPERATING A VEHICLE BRAKE SYSTEM - A method for operating a vehicle brake system having both frictional and regenerative braking capabilities. According to one embodiment, the method monitors wheel slip at a number of vehicle wheels, evaluates individual wheel slip at a single wheel as well as collective wheel slip involving multiple wheels, compares the wheel slips to one or more speed-based thresholds that are based on vehicle speed, and uses the comparisons to help distinguish between those situations that warrant disengagement of regenerative braking operations and those that do not. | 09-15-2011 |
| 20110233994 | System And Method To Control Regenerative Braking - A braking system for an electric vehicle has a first wheel having a first friction brake and an electric motor and a second having a second friction brake. A first user-actuated brake lever is coupled to the first friction brake. The first brake lever has a first sensor indicating actuation of the first brake lever. A second user-actuated brake lever is coupled to the second friction brake. The second brake lever has a second sensor indicating actuation of the second brake lever. An electronic control unit electronically coupled to the first and second sensors and the electric motor commands the electric motor to operate as a generator when at least one of the brake levers is actuated. | 09-29-2011 |
| 20120133202 | DYNAMIC REGENERATIVE BRAKING TORQUE CONTROL - Methods, systems, and program products for adjusting regenerative braking torque in a vehicle having wheels and a regenerative braking system providing the regenerative braking torque are provided. A deceleration of the vehicle is determined. A wheel slip of the wheels is determined. The regenerative braking torque is adjusted for the regenerative braking system using the deceleration and the wheel slip. | 05-31-2012 |
| 20120280562 | FUZZY LOGIC BASED BRAKE CONTROL - A controller for controlling braking of a wheel of a vehicle. The controller includes a first connection to a friction brake, a second connection to a motor/generator, a third connection to a plurality of sensors, and a fuzzy logic module. The motor/generator is configured to drive the wheel in a driving mode and to brake the wheel in a regenerative braking mode. Operating parameters of the vehicle are sensed by the plurality of sensors. The fuzzy logic module is configured to determine a stability of the vehicle and the wheel based on data from the plurality of sensors. The fuzzy logic module allocates braking force between the friction brake and the motor/generator operating in the regenerative braking mode based on the stability of the vehicle and the wheel. | 11-08-2012 |
| 20140375115 | BRAKING CONTROL DEVICE - A braking control device, includes a regenerative braking control part, a wheel speed differential detection part, and a regenerative restriction part. The regenerative braking control part is configured to carrying out regenerative braking on the drive wheels based on a deceleration request operation. The wheel speed differential detection part is configured to determine a wheel speed differential between the driven wheel speed and the regenerative braking wheel speed. The regenerative restriction part is configured to restrict the regenerative braking amount when the wheel speed differential exceeds a restriction initiation threshold value. The regenerative restriction part, during restriction of the regenerative braking amount, is configured to repeatedly carrying out a restriction in accordance with a large restriction phase in which a decrease in gradient of the regenerative braking amount is large and a restriction in accordance with a small restriction phase in which the decrease in gradient is small. | 12-25-2014 |
