When a parking brake mechanism is in a braking state and an operation switch is switched to a braking-released state, a control unit of an electric vehicle brings a parking brake mechanism into a braking-released state on the condition that the control unit detects using a stop lamp switch that the brake pedal is not depressed and detects that the shift range of the shift lever is a P range.

A method of actuating a parking brake for a vehicle having an electromechanical brake device in a situation whereat driving dynamics state information is not available in the vehicle and whereat a driver operates the parking brake includes producing an electromechanical braking force with a magnitude that is less than a maximum braking force of the parking brake.

Provided is an electric brake system capable of compensating for a braking force by the whole electric brake system when functional degradation occurs in a part of the system. This system includes: a diagnosis module (24) that detects functional degradation in each of electric brake devices (DB); a control calculation module (23) that estimates a controlled variable error that is a difference between an estimate of a braking force determined by a braking force estimation device (28) of an electric brake device (DB) in which functional degradation is detected, and a braking force determined by the device (28) of an electric brake device (DB) in which no functional degradation is detected; and a controlled variable compensating module (29) that, when the module (23) estimates the existence of the error, distributes a braking force corresponding to the error among the devices (DB) other than the electric brake device in which the error exists so as to add the distributed braking force to the braking force target value of each electric brake device.

Corrosion inhibiting hydraulic fluid additives, kits, and methods are disclosed. The hydraulic fluid additive may be adapted for use with brake fluid in vehicular brake systems. The kits may include an additive, a hydraulic fluid tester, and/or correlated information on test results and hydraulic fluid service actions.

A method for controlling brakes is provided, The method comprises detecting an imminent skid by an anti-skid controller/deceleration controller (ASK/DK). The ASK/DK outputs at least one of a negative desired pressure command to a pressure control unit (PK) in response to detecting the imminent skid and causes a current command output from the PK to be reduced to release braking pressure if the negative desired pressure command minus a measured feedback pressure is greater than a deadband of the PK or outputs a negative desired force command to a force control unit (ForK) in response to detecting the imminent skid and causing a current command output from the ForK to be reduced to release braking force if the negative desired force command minus a measured feedback force is greater than a deadband of the Fork. A brake control system is also provided.

A method for controlling brakes is provided, The method comprises detecting an imminent skid by an anti-skid controller/deceleration controller (ASK/DK). The ASK/DK outputs at least one of a negative desired pressure command to a pressure control unit (PK) in response to detecting the imminent skid and causes a current command output from the PK to be reduced to release braking pressure if the negative desired pressure command minus a measured feedback pressure is greater than a deadband of the PK or outputs a negative desired force command to a force control unit (ForK) in response to detecting the imminent skid and causing a current command output from the ForK to be reduced to release braking force if the negative desired force command minus a measured feedback force is greater than a deadband of the Fork. A brake control system is also provided.

A method and apparatus are provided for optimizing one or more object detection parameters used by an autonomous vehicle to detect objects in images. The autonomous vehicle may capture the images using one or more sensors. The autonomous vehicle may then determine object labels and their corresponding object label parameters for the detected objects. The captured images and the object label parameters may be communicated to an object identification server. The object identification server may request that one or more reviewers identify objects in the captured images. The object identification server may then compare the identification of objects by reviewers with the identification of objects by the autonomous vehicle. Depending on the results of the comparison, the object identification server may recommend or perform the optimization of one or more of the object detection parameters.

The exposure of an aircraft component to an oxidation catalyst, such as a deicing solution, may be detected with the aid of an electrical conductivity sensor. In some examples, a system includes an aircraft component, an electrical conductivity sensor mechanically connected to the aircraft component and configured to generate an output, and a processor configured to detect an oxidation catalyst exposure event based on the output generated by the electrical conductivity sensor. The electrical conductivity sensor may be configured and positioned to generate a signal indicative of electrical conductivity of a substance to which the aircraft component is exposed. The processor may be configured to detect an oxidation catalyst exposure event by at least determining whether the electrical conductivity indicated by the signal is greater than or equal to a predetermined conductivity threshold value.

The exposure of an aircraft component to an oxidation catalyst, such as a deicing solution, may be detected with the aid of an electrical conductivity sensor. In some examples, a system includes an aircraft component, an electrical conductivity sensor mechanically connected to the aircraft component and configured to generate an output, and a processor configured to detect an oxidation catalyst exposure event based on the output generated by the electrical conductivity sensor. The electrical conductivity sensor may be configured and positioned to generate a signal indicative of electrical conductivity of a substance to which the aircraft component is exposed. The processor may be configured to detect an oxidation catalyst exposure event by at least determining whether the electrical conductivity indicated by the signal is greater than or equal to a predetermined conductivity threshold value.

A system for providing real-time alerts or actions comprises an image capturing device and a processor and a memory. The image capturing device is for capturing an image during vehicle operation and of an expected driver location. The processor is configured to: 1) detect a face of a driver in the image; 2) determine a set of face data from the image; and 3) determine authentication based at least in part on the set of face data. The memory is coupled to the processor and configured to provide the processor with instructions.