Methods and systems are disclosed for activating a vehicle ignition system. An example vehicle includes an ignition system, a plurality of sensors, and a processor. The processor a processor is configured to determine, based on data received from the sensors, (i) that a person occupies a driver's seat of the vehicle, (ii) that a key fob corresponding to the vehicle is present, and (iii) that an input has been received at a shifter of the vehicle. The processor is also configured to responsively activate the ignition system.

Methods and systems are disclosed for activating a vehicle ignition system. An example vehicle includes an ignition system, a plurality of sensors, and a processor. The processor a processor is configured to determine, based on data received from the sensors, (i) that a person occupies a driver's seat of the vehicle, (ii) that a key fob corresponding to the vehicle is present, and (iii) that an input has been received at a shifter of the vehicle. The processor is also configured to responsively activate the ignition system.

A vehicle safety device (200) for preventing an unoccupied vehicle moving uncontrollably. The device comprises a control module (201) and a brake module (203). The device (200) is configured to detect when a driver leaves said vehicle. The device (200) is also configured to activate, through the brake module (203), a braking system when the device detects that said driver has left the vehicle. The device may improve the safety of a vehicle in which it is fitted. A system (300) comprising the device (200) and a vehicle (400) comprising the system (300) are also described. A method of preventing an unoccupied vehicle moving is also described. The device, system, vehicle and method are particularly useful for preventing accidents in large commercial vehicles caused by a driver leaving the vehicle without engaging a parking brake.

A kill switch including a switch assembly. When the switch assembly moves from a switch first configuration to a switch second configuration with the switch assembly operatively connected to a controller of a tractor, a kill electrical signal is provided to the controller to stop the tractor powering a power take-off thereof. A cord is securable to the switch assembly and to the piece of machinery to extend along a rotary drive shaft between the tractor and the piece of machinery. A switch actuating element extends from the cord, the switch actuating element being removably securable to the switch assembly. In the switch first configuration with the switch actuating element secured to the switch assembly, the switch actuating element maintains the switch assembly in the switch first configuration. When the switch actuating element is removed from the actuating element receiving portion, the switch assembly moves to the switch second configuration.

A kill switch including a switch assembly. When the switch assembly moves from a switch first configuration to a switch second configuration with the switch assembly operatively connected to a controller of a tractor, a kill electrical signal is provided to the controller to stop the tractor powering a power take-off thereof. A cord is securable to the switch assembly and to the piece of machinery to extend along a rotary drive shaft between the tractor and the piece of machinery. A switch actuating element extends from the cord, the switch actuating element being removably securable to the switch assembly. In the switch first configuration with the switch actuating element secured to the switch assembly, the switch actuating element maintains the switch assembly in the switch first configuration. When the switch actuating element is removed from the actuating element receiving portion, the switch assembly moves to the switch second configuration.

An emergency controller includes an emergency stop switch to be activated upon detection of an emergency, a control section to be enabled upon activation of the emergency stop switch, and an emergency stop mechanism configured to execute and release braking by a brake mechanism under control of the control section. The control section is configured to perform execution control for causing the emergency stop mechanism to execute braking by the brake mechanism and for stopping operation of the engine upon the condition that the emergency stop switch is activated while the engine is in operation. The control section is configured to perform restoration control for causing the emergency stop mechanism to release the braking by the brake mechanism upon the condition that the emergency stop switch is deactivated and the engine is started.

An emergency controller includes an emergency stop switch to be activated upon detection of an emergency, a control section to be enabled upon activation of the emergency stop switch, and an emergency stop mechanism configured to execute and release braking by a brake mechanism under control of the control section. The control section is configured to perform execution control for causing the emergency stop mechanism to execute braking by the brake mechanism and for stopping operation of the engine upon the condition that the emergency stop switch is activated while the engine is in operation. The control section is configured to perform restoration control for causing the emergency stop mechanism to release the braking by the brake mechanism upon the condition that the emergency stop switch is deactivated and the engine is started.

In some aspects, a device may obtain sensor data associated with a driver control region of a vehicle. The device may detect, based on the sensor data, one or more sensor detections associated with one or more lower extremities of a driver of the vehicle. The device may determine, based on the one or more sensor detections, one or more reaction time risk indicators. The device may estimate, based on the one or more reaction time risk indicators, a driver reaction time associated with the driver of the vehicle. The device may perform one or more actions based on at least one of the driver reaction time or the one or more reaction time risk indicators. Numerous other aspects are described.

Aspects of the disclosure relate to determining and responding to an internal state of a self-driving vehicle. For instance, an image of an interior of the vehicle captured by a camera mounted in the vehicle is received. The image is processed in order to identify one or more visible markers at predetermined locations within the vehicle. The internal state of the vehicle is determined based on the identified one or more visible markers. A responsive action is identified action using the determined internal state, and the vehicle is controlled in order to perform the responsive action.

Aspects of the disclosure relate to determining and responding to an internal state of a self-driving vehicle. For instance, an image of an interior of the vehicle captured by a camera mounted in the vehicle is received. The image is processed in order to identify one or more visible markers at predetermined locations within the vehicle. The internal state of the vehicle is determined based on the identified one or more visible markers. A responsive action is identified action using the determined internal state, and the vehicle is controlled in order to perform the responsive action.